Vulnerability database
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83 results · page 1 of 2
Sep 16, 2026On affected platforms running Arista EOS with IGMP (Internet Group Management Protocol) snooping configured (enabled by default on all VLANs), a network-adjacenCVE-2026-73462 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.1
On affected platforms running Arista EOS with IGMP (Internet Group Management Protocol) snooping configured (enabled by default on all VLANs), a network-adjacent unauthenticated attacker can send malformed network packets on an affected VLAN to cause the IGMP snooping agent to terminate unexpectedly. This results in a temporary disruption of multicast traffic management, which may cause multicast traffic to be flooded to all ports of the affected VLAN until the service recovers. Repeated exploitation could result in a prolonged loss of intended multicast forwarding behavior.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, the gNPSI client credentials mCVE-2026-73457 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, the gNPSI client credentials might be logged in clear text in local or remote accounting logs to authenticated users.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, an unauthenticated gNPSI clienCVE-2026-73456 · Other software · Arista Networks · reported by psirt@arista.comCritical 9.2
Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, an unauthenticated gNPSI client can craft a malicious request to allow arbitrary code execution, granting an attacker full administrative control over the compromised switch.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with VRRPv2 IP-AH authentication configured, an unauthenticated attacker within the same layer 2 network segment on whiCVE-2026-73443 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.3
On affected platforms running Arista EOS with VRRPv2 IP-AH authentication configured, an unauthenticated attacker within the same layer 2 network segment on which VRRP is running can capture a legitimate authenticated VRRP advertisement and replay it indefinitely. Replayed advertisements can be used to advertise stale VRRP state, for example to prevent a backup router from taking over the virtual gateway after the original master has gone down, resulting in a denial of service for hosts using the virtual gateway address.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an aCVE-2026-73442 · Other software · Arista Networks · reported by psirt@arista.comLow 2.1
On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS, an unauthenticated attacker who is network-adjacent to the switch and able to connect to a device with PIM Sparse ModeCVE-2026-77190 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
On affected platforms running Arista EOS, an unauthenticated attacker who is network-adjacent to the switch and able to connect to a device with PIM Sparse Mode and MLAG configured, can send malformed messages that cause the Pimsm agent to terminate unexpectedly. The Pimsm agent is automatically restarted, but repeated attacks can cause the agent to restart continuously, resulting in a sustained denial of service.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026When specific platforms are using Arista EOS with a loose Unicast Reverse Path Forwarding (uRPF) configuration, certain traffic may not be subjected to the inteCVE-2026-73469 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.9
When specific platforms are using Arista EOS with a loose Unicast Reverse Path Forwarding (uRPF) configuration, certain traffic may not be subjected to the intended verification drop. Consequently, traffic that should be dropped based on these routes could still be processed and forwarded by the device. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specially crafted packet can cause the OSPFv3 agent to rCVE-2026-73455 · Other software · Arista Networks · reported by psirt@arista.comHigh 8.9
On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with Simple Network Management Protocol (SNMP) configured, SNMPv3 local or remote user credentials may be exposed as a CVE-2026-73440 · Other software · Arista Networks · reported by psirt@arista.comLow 2.3
On affected platforms running Arista EOS with Simple Network Management Protocol (SNMP) configured, SNMPv3 local or remote user credentials may be exposed as a one-way hashed, localized key value within the device's running and sanitized configurations. An authenticated user who gains access to this sensitive information could leverage it to perform unauthorized read operations on SNMP tables or to send fraudulent trap notifications to the Network Management System (NMS). This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, an unauthenticated attacker on the same OSPFv3 broadcast dCVE-2026-73438 · Other software · Arista Networks · reported by psirt@arista.comHigh 7
On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, an unauthenticated attacker on the same OSPFv3 broadcast domain can send a specially crafted set of packets that can cause the Ospf3 agent to restart unexpectedly. The crash results in the loss of all OSPFv3 adjacencies on the affected device and may disrupt routing across the broader OSPF domain until the agent recovers. This issue was reported externally by Dravanet Inc., and Arista is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with OSPFv2 and OSPFv2 segment routing configured, a specially crafted OSPFv2 packet from an adjacent OSPF neighbor mayCVE-2026-73436 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
On affected platforms running Arista EOS with OSPFv2 and OSPFv2 segment routing configured, a specially crafted OSPFv2 packet from an adjacent OSPF neighbor may cause OSPF to restart unexpectedly.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with Open Shortest Path First version 2 (OSPFv2) configured, a specially crafted OSPFv2 packet from an unauthenticated CVE-2026-73435 · Other software · Arista Networks · reported by psirt@arista.comHigh 7
On affected platforms running Arista EOS with Open Shortest Path First version 2 (OSPFv2) configured, a specially crafted OSPFv2 packet from an unauthenticated attacker on the same broadcast segment, with OSPFv2 authentication configured can cause adjacency flapping and packet loss. The disruption can affect routing across the broader OSPF domain.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization CVE-2026-19640 · Other software · Arista Networks · reported by psirt@arista.comLow 2.3
On affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization results, potentially allowing access beyond their currently assigned permissions. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticateCVE-2026-73464 · Other software · Arista Networks · reported by psirt@arista.comHigh 8.7
On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS, when multiple gRPC Network Security Interface (gNSI) transports are configured, a race condition in the gNSI Authz serCVE-2026-73463 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
On affected platforms running Arista EOS, when multiple gRPC Network Security Interface (gNSI) transports are configured, a race condition in the gNSI Authz service may cause a policy rotation to fail silently. An authenticated user whose access was revoked by the new policy may retain unauthorized access to gRPC interfaces. This does not affect Bootz. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended moCVE-2026-73454 · Other software · Arista Networks · reported by psirt@arista.comHigh 8.6
On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended modifications to the target account's properties. This may result in the account being assigned elevated privileges or access beyond what an administrator intended.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS, an issue with the gRPC Network Security Interface (gNSI) Authz Rotate RPC may cause an incorrect Authz policy which waCVE-2026-73445 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.9
On affected platforms running Arista EOS, an issue with the gRPC Network Security Interface (gNSI) Authz Rotate RPC may cause an incorrect Authz policy which was uploaded in the ongoing RPC stream to become active. This does not affect Bootz. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS, if OpenConfig is configured and running a gNMI server on the system, and if gNSI Pathz is configured and a gNSI Pathz CVE-2026-73439 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.7
On affected platforms running Arista EOS, if OpenConfig is configured and running a gNMI server on the system, and if gNSI Pathz is configured and a gNSI Pathz policy is present on the system, then gNMI may fail to correctly enforce the rules in this policy if both a group rule and a user rule for the same path is present in the policy. Under certain conditions, this can lead to an authenticated user gaining unauthorized permission to read or write gNMI paths that the Pathz policy is intended to restrict.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026On affected platforms running Arista EOS with OpenConfig-related services (i.e., gNMI, gNSI, RESTCONF and NETCONF), sensitive requests and responses may be uninCVE-2026-2380 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.1
On affected platforms running Arista EOS with OpenConfig-related services (i.e., gNMI, gNSI, RESTCONF and NETCONF), sensitive requests and responses may be unintentionally logged. These may be stored on the local EOS device or recorded on remote accounting servers. Note that gRPC-based streaming via Streaming Telemetry Agent to CloudVision is not affected by this vulnerability. Examples of sensitive information include: - Sensitive CLI commands (e.g., "username bob secret myPass") - Sensitive OpenConfig YANG leafs (e.g., "system/aaa/global/tacacs/config/secret-key") This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with MLAG Dual Primary Detection configured, an unauthenticated attacker with access to the Dual Primary Detection netwCVE-2026-73450 · Other software · Arista Networks · reported by psirt@arista.comHigh 7
On affected platforms running Arista EOS with MLAG Dual Primary Detection configured, an unauthenticated attacker with access to the Dual Primary Detection network segment can send specially crafted packets to interfere with the dual-primary state. If the MLAG primary switch fails while these packets are present, the secondary switch incorrectly concludes it is in a dual-primary condition and err-disables its interfaces, leading to a traffic interruption.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with IS-IS graceful restart enabled, an unauthenticated attacker who can inject a malformed IS-IS LSP PDU packet can caCVE-2026-73460 · Other software · Arista Networks · reported by psirt@arista.comHigh 7
On affected platforms running Arista EOS with IS-IS graceful restart enabled, an unauthenticated attacker who can inject a malformed IS-IS LSP PDU packet can cause the IS-IS graceful restart procedure to terminate prematurely. This may result in traffic loss following a restart event.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who can inject a specially crafted IS-IS LSP PDU can cause the legitCVE-2026-73459 · Other software · Arista Networks · reported by psirt@arista.comHigh 7
On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who can inject a specially crafted IS-IS LSP PDU can cause the legitimate LSP to be unexpectedly purged from the IS-IS link-state database. This may result in traffic loss.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with IS-IS configured on a broadcast interface, an unauthenticated attacker can send a crafted IS-IS Hello Protocol DatCVE-2026-73446 · Other software · Arista Networks · reported by psirt@arista.comHigh 7
On affected platforms running Arista EOS with IS-IS configured on a broadcast interface, an unauthenticated attacker can send a crafted IS-IS Hello Protocol Data Unit (PDU) that causes the device to tear down an established IS-IS adjacency. This may result in traffic disruption and loss of IP reachability for prefixes advertised through that adjacency.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with VRRPv2 IP Authentication Header (IP-AH) authentication configured, an unauthenticated attacker with access to the CVE-2026-73444 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.3
On affected platforms running Arista EOS with VRRPv2 IP Authentication Header (IP-AH) authentication configured, an unauthenticated attacker with access to the layer 2 network segment on which VRRP is running could bypass VRRP authentication and claim the virtual router master role, enabling the attacker to intercept, modify, or discard traffic that hosts on the segment send to the virtual gateway address.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay configured, an unauthenticated attacker with network access couldCVE-2026-73437 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.5
On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay configured, an unauthenticated attacker with network access could send a crafted DHCP reply packet from an IP address that is not configured as a helper address, and the relay agent would forward it to clients without validating the source. This could allow the attacker to supply clients with malicious network configuration parameters, potentially resulting in traffic interception or denial of service for affected clients.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay/snooping configured with the information option (Option 82), or wCVE-2026-19655 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.1
On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay/snooping configured with the information option (Option 82), or with the DHCP server configured with match criteria based on the information option, an unauthenticated attacker connected to a client-facing VLAN(s) where the relay is configured can send a specially crafted packet that causes the DHCP Relay service to restart.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection (BFD) sessions configured, a specially crafted packet can cause tCVE-2026-73458 · Other software · Arista Networks · reported by psirt@arista.comCritical 9.2
On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection (BFD) sessions configured, a specially crafted packet can cause the BFD session(s) to go down. This may result in undesirable network changes because various routing protocols monitor status on BFD session(s).
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System PCVE-2026-73467 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus (TACACS+) servers
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS, under certain circumstances user passwordss may be written in clear text to log files during operations when specializCVE-2026-73466 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
On affected platforms running Arista EOS, under certain circumstances user passwordss may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled. To exploit these vulnerabilities, a malicious actor must already possess authenticated local administrative access to the device shell, and specialized non-standard debugging trace levels must be explicitly enabled. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS, under certain circumstances plaintext private keys may be written in clear text to log files during operations when spCVE-2026-73465 · Other software · Arista Networks · reported by psirt@arista.comMedium 6
On affected platforms running Arista EOS, under certain circumstances plaintext private keys may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled. To exploit these vulnerabilities, a malicious actor must already possess authenticated local administrative access to the device shell, and specialized non-standard debugging trace levels must be explicitly enabled. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with dual switch cards and with ingress Security ACLs configured on Switched Virtual Interfaces (SVI) in shared mode, rCVE-2026-73451 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.3
On affected platforms running Arista EOS with dual switch cards and with ingress Security ACLs configured on Switched Virtual Interfaces (SVI) in shared mode, restarting of the secondary switchcard forwarding agent or insertion of secondary switchcard, can cause security ACLs on shared SVIs to stop functioning. This may result in incorrect packet permit/deny behavior. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions.CVE-2026-19641 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.9
On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions. Repeated exploitation of this issue can exhaust available authentication resources, resulting in legitimate users being unable to log in to the device. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 14, 2026On affected platforms running Arista EOS with both 802.1X port authentication and the RADIUS proxy feature configured with dynamic authorization, a low-privilegCVE-2026-73449 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.9
On affected platforms running Arista EOS with both 802.1X port authentication and the RADIUS proxy feature configured with dynamic authorization, a low-privileged attacker on an adjacent network segment who induces a RADIUS packet through a configured RADIUS proxy client can prevent RADIUS dynamic authorization messages, including Change-of-Authorization (CoA) and Disconnect-Requests as defined in RFC 5176, from being applied to locally authenticated 802.1X sessions. This allows an endpoint session that a RADIUS server or network access control system has ordered disconnected to remain authorized on the network. Both 802.1X port authentication with dynamic authorization and RADIUS proxy with dynamic authorization must be explicitly configured for a deployment to be exposed to this issue. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 5, 2026On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS may exhibit unexpected behavior in specific cases.CVE-2026-2379 · Other software · Arista Networks · reported by psirt@arista.comHigh 8.2
On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS may exhibit unexpected behavior in specific cases. Physical interface flaps and certain agent restarts can cause IPsec tunnel re-establishment with existing Security Associations, resulting in sequence number mismatches between tunnel endpoints potentially causing unstable communication.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 4, 2026On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic.CVE-2025-8873 · Other software · Arista Networks · reported by psirt@arista.comHigh 8.7
On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, and attempt to reset the IPsec processing pipeline. After reset traffic may not resume being processed. There is no impact to non-IPsec traffic or to IPsec traffic not originating or terminating on the system. This issue was reported by an Arista customer.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 4, 2026Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected.CVE-2024-27892 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.2
Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 4, 2026On affected platforms running Arista EOS with MACsec and egress ACLs configured on the same interfaces, the ACL policies may not be enforced for packets egressiCVE-2024-27891 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.9
On affected platforms running Arista EOS with MACsec and egress ACLs configured on the same interfaces, the ACL policies may not be enforced for packets egressing on those ports. This can cause outgoing packets to incorrectly be allowed or denied.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 4, 2026Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected.CVE-2024-27890 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.2
Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 4, 2026On affected platforms running Arista EOS with 802.1x authentication configured on the access/trunk ports, and routing enabled on the access VLAN of the ports, aCVE-2023-5502 · Other software · Arista Networks · reported by psirt@arista.comHigh 8.2
On affected platforms running Arista EOS with 802.1x authentication configured on the access/trunk ports, and routing enabled on the access VLAN of the ports, a malicious supplicant may be able to bypass the requirement to perform 802.1x authentication.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 6, 2026On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly.CVE-2025-7048 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.3
On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly. Continuous receipt of these packets with certain MACsec configurations can cause longer term disruption of dataplane traffic.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2025On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may CVE-2025-8872 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.1
On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered internally by Arista and is not aware of any malicious uses of this issue in customer networks.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 14, 2025On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153CVE-2025-8870 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.6
On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 25, 2025On affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS.CVE-2025-6188 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.5
On affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do not perform some form of authentication.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 25, 2025On affected platforms running Arista EOS, the global common encryption key configuration may be logged in clear text, in local or remote accounting logs.CVE-2025-3456 · Other software · Arista Networks · reported by psirt@arista.comLow 3.8
On affected platforms running Arista EOS, the global common encryption key configuration may be logged in clear text, in local or remote accounting logs. Knowledge of both the encryption key and protocol specific encrypted secrets from the device running-config could then be used to obtain protocol specific passwords in cases where symmetric passwords are required between devices with neighbor protocol relationships.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 27, 2025n affected platforms running Arista EOS, ACL policies may not be enforced.CVE-2025-2826 · Other software · Arista Networks · reported by psirt@arista.comLow 2.6
n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled on one or more ethernet or LAG interfaces may result in ACL policies not being enforced for ingress packets. This can cause incoming packets to incorrectly be allowed or denied. The two symptoms of this issue on the affected release and platform are: * Packets which should be permitted may be dropped and, * Packets which should be dropped may be permitted.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 27, 2025On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behaviCVE-2025-2796 · Other software · Arista Networks · reported by psirt@arista.comMedium 5.3
On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal anti-replay protection, will instead be forwarded due to this vulnerability. Note: this issue does not affect VXLANSec or MACSec encryption functionality.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 27, 2025On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with diffeCVE-2024-11185 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.5
On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with different VLANs, resulting in a breach of VLAN isolation and segmentation boundaries.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 8, 2025On affected platforms running Arista EOS with Traffic Policies configured the vulnerability will cause received untagged packets not to hit Traffic Policy rulesCVE-2024-9448 · Other software · Arista Networks · reported by psirt@arista.comHigh 7.5
On affected platforms running Arista EOS with Traffic Policies configured the vulnerability will cause received untagged packets not to hit Traffic Policy rules that they are expected to hit. If the rule was to drop the packet, the packet will not be dropped and instead will be forwarded as if the rule was not in place. This could lead to packets being delivered to unexpected destinations.
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 8, 2025On affected platforms running Arista EOS with secure Vxlan configured, restarting the Tunnelsec agent will result in packets being sent over the secure Vxlan tuCVE-2024-12378 · Other software · Arista Networks · reported by psirt@arista.comCritical 9.1
On affected platforms running Arista EOS with secure Vxlan configured, restarting the Tunnelsec agent will result in packets being sent over the secure Vxlan tunnels in the clear.
- Product
- CloudVision Portal
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 7, 2025On affected platforms running Arista EOS with a gNMI transport enabled, running the gNOI File TransferToRemote RPC with credentials for a remote server may causCVE-2025-0936 · Other software · Arista Networks · reported by psirt@arista.comMedium 6.5
On affected platforms running Arista EOS with a gNMI transport enabled, running the gNOI File TransferToRemote RPC with credentials for a remote server may cause these remote-server credentials to be logged or accounted on the local EOS device or possibly on other remote accounting servers (i.e. TACACS, RADIUS, etc).
- Product
- EOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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