Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
28 results
Oct 10, 2018A persistent cross-site scripting vulnerability in the graphical user interface of ScreenOS may allow a remote authenticated user to inject web script or HTML aCVE-2018-0059 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 5.4
A persistent cross-site scripting vulnerability in the graphical user interface of ScreenOS may allow a remote authenticated user to inject web script or HTML and steal sensitive data and credentials from a web administration session, possibly tricking a follow-on administrative user to perform administrative actions on the device. Affected releases are Juniper Networks ScreenOS 6.3.0 versions prior to 6.3.0r26.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Jan 10, 2018Juniper Networks ScreenOS devices do not pad Ethernet packets with zeros, and thus some packets can contain fragments of system memory or data from previous pacCVE-2018-0014 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 4.3
Juniper Networks ScreenOS devices do not pad Ethernet packets with zeros, and thus some packets can contain fragments of system memory or data from previous packets. This issue is often detected as CVE-2003-0001. The issue affects all versions of Juniper Networks ScreenOS prior to 6.3.0r25.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritytracker.comkb.juniper.net
Jul 17, 2017A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'sCVE-2017-2339 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.4
A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comsecuritytracker.com
Jul 17, 2017A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'sCVE-2017-2338 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.4
A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comsecuritytracker.com
Jul 17, 2017A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'sCVE-2017-2337 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.4
A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comsecuritytracker.com
Jul 17, 2017A reflected cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a network based attCVE-2017-2336 · Network & remote access · Juniper Networks · reported by sirt@juniper.netCritical 9.6
A reflected cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a network based attacker to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the attacker to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comsecuritytracker.com
Jul 17, 2017A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'sCVE-2017-2335 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.4
A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.
- Product
- ScreenOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comsecuritytracker.com
Apr 15, 2016The administrative web services interface in Juniper ScreenOS before 6.3.0r21 allows remote attackers to cause a denial of service (reboot) via a crafted SSL paCVE-2016-1268 · Network & remote access · Juniper · reported by MITREHigh 7.5
The administrative web services interface in Juniper ScreenOS before 6.3.0r21 allows remote attackers to cause a denial of service (reboot) via a crafted SSL packet.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netsecuritytracker.com
Jan 8, 2016Juniper ScreenOS before 6.3.0r21, when ssh-pka is configured and enabled, allows remote attackers to cause a denial of service (system crash) or execute arbitraCVE-2015-7754 · Network & remote access · Juniper · reported by MITREHigh 8.1
Juniper ScreenOS before 6.3.0r21, when ssh-pka is configured and enabled, allows remote attackers to cause a denial of service (system crash) or execute arbitrary code via crafted SSH negotiation.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netsecurityfocus.com
Dec 19, 2015The encryption implementation in Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0r14b, 6.CVE-2015-7756 · Network & remote access · Juniper · reported by MITREMedium 5
The encryption implementation in Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0r14b, 6.3.0r15 before 6.3.0r15b, 6.3.0r16 before 6.3.0r16b, 6.3.0r17 before 6.3.0r17b, 6.3.0r18 before 6.3.0r18b, 6.3.0r19 before 6.3.0r19b, and 6.3.0r20 before 6.3.0r21 makes it easier for remote attackers to discover the plaintext content of VPN sessions by sniffing the network for ciphertext data and conducting an unspecified decryption attack.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarstechnica.comkb.juniper.net
Dec 19, 2015Juniper ScreenOS Improper Authentication VulnerabilityCVE-2015-7755 · Network & remote access · Juniper · reported by MITREExploitedCritical 9.8
Juniper ScreenOS contains an improper authentication vulnerability that could allow unauthorized remote administrative access to the device.
- Product
- ScreenOS
- On CISA’s list since
- Oct 2, 2025 (federal fix deadline Oct 23, 2025)
- What to do
- Attackers are using this now. Install Juniper’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogarstechnica.comkb.juniper.net
Oct 19, 2015The L2TP packet processing functionality in Juniper Netscreen and ScreenOS Firewall products with ScreenOS before 6.3.0r13-dnd1, 6.3.0r14 through 6.3.0r18 beforCVE-2015-7750 · Network & remote access · Juniper · reported by MITREMedium 5
The L2TP packet processing functionality in Juniper Netscreen and ScreenOS Firewall products with ScreenOS before 6.3.0r13-dnd1, 6.3.0r14 through 6.3.0r18 before 6.3.0r18-dnc1, and 6.3.0r19 allows remote attackers to cause a denial of service via a crafted L2TP packet.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netsecuritytracker.com
Jun 13, 2014The Juniper Networks NetScreen Firewall devices with ScreenOS before 6.3r17, when configured to use the internal DNS lookup client, allows remote attackers to cCVE-2014-3814 · Network & remote access · Juniper · reported by MITREHigh 7.8
The Juniper Networks NetScreen Firewall devices with ScreenOS before 6.3r17, when configured to use the internal DNS lookup client, allows remote attackers to cause a denial of service (crash and reboot) via a sequence of malformed packets to the device IP.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netsecunia.com
Jun 13, 2014Unspecified vulnerability in the Juniper Networks NetScreen Firewall products with ScreenOS before 6.3r17, when configured to use the internal DNS lookup clientCVE-2014-3813 · Network & remote access · Juniper · reported by MITREHigh 7.8
Unspecified vulnerability in the Juniper Networks NetScreen Firewall products with ScreenOS before 6.3r17, when configured to use the internal DNS lookup client, allows remote attackers to cause a denial of service (crash and reboot) via vectors related to a DNS lookup.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netsecunia.com
Apr 15, 2014Juniper ScreenOS 6.3 and earlier allows remote attackers to cause a denial of service (crash and restart or failover) via a malformed SSL/TLS packet.CVE-2014-2842 · Network & remote access · Juniper · reported by MITREHigh 7.8
Juniper ScreenOS 6.3 and earlier allows remote attackers to cause a denial of service (crash and restart or failover) via a malformed SSL/TLS packet.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecunia.comkb.cert.org
Jan 23, 2014The OSPF implementation in Juniper Junos through 13.x, JunosE, and ScreenOS through 6.3.x does not consider the possibility of duplicate Link State ID values inCVE-2013-7313 · Network & remote access · Juniper · reported by MITREMedium 5.4
The OSPF implementation in Juniper Junos through 13.x, JunosE, and ScreenOS through 6.3.x does not consider the possibility of duplicate Link State ID values in Link State Advertisement (LSA) packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a crafted LSA packet, a related issue to CVE-2013-0149.
- Product
- Junos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.cert.orgkb.cert.org
Dec 13, 2013Juniper NetScreen Firewall running ScreenOS 5.4, 6.2, or 6.3, when the Ping of Death screen is disabled, allows remote attackers to cause a denial of service viCVE-2013-6958 · Network & remote access · Juniper · reported by MITREHigh 7.1
Juniper NetScreen Firewall running ScreenOS 5.4, 6.2, or 6.3, when the Ping of Death screen is disabled, allows remote attackers to cause a denial of service via a crafted packet.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 9, 2009Cross-site scripting (XSS) vulnerability in Juniper NetScreen ScreenOS before 5.4r10, 6.0r6, and 6.1r2 allows remote attackers to inject arbitrary web script orCVE-2008-6096 · Network & remote access · Juniper · reported by MITREMedium 4.3
Cross-site scripting (XSS) vulnerability in Juniper NetScreen ScreenOS before 5.4r10, 6.0r6, and 6.1r2 allows remote attackers to inject arbitrary web script or HTML via the user name parameter to the (1) web interface login page or the (2) telnet login page.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecunia.comlayereddefense.com
Aug 23, 2005Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authentication, allows rCVE-2005-2640 · Other software · Neoteris · reported by MITREMedium 5
Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authentication, allows remote attackers to enumerate valid usernames via an IKE Aggressive Mode packet, which generates a response if the username is valid but does not respond when the username is invalid.
- Product
- Instant Virtual Extranet
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 31, 2004Unknown vulnerability in ScreenOS in Juniper Networks NetScreen firewall 3.x through 5.x allows remote attackers to cause a denial of service (device reboot or CVE-2004-1446 · Network & remote access · Juniper · reported by MITREMedium 5
Unknown vulnerability in ScreenOS in Juniper Networks NetScreen firewall 3.x through 5.x allows remote attackers to cause a denial of service (device reboot or hang) via a crafted SSH v1 packet.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecunia.comjuniper.net
Jan 20, 2004The default installation of NetScreen-Security Manager before Feature Pack 1 does not enable encryption for communication with devices running ScreenOS 5.0, whiCVE-2004-1766 · Other software · reported by MITREMedium 5
The default installation of NetScreen-Security Manager before Feature Pack 1 does not enable encryption for communication with devices running ScreenOS 5.0, which allows remote attackers to obtain sensitive information via sniffing.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecunia.comjuniper.net
Mar 31, 2003Netscreen running ScreenOS 4.0.0r6 and earlier allows remote attackers to cause a denial of service via a malformed SSH packet to the Secure Command Shell (SCS)CVE-2002-1547 · Network & remote access · Juniper · reported by MITREMedium 5
Netscreen running ScreenOS 4.0.0r6 and earlier allows remote attackers to cause a denial of service via a malformed SSH packet to the Secure Command Shell (SCS) management interface, as demonstrated via certain CRC32 exploits, a different vulnerability than CVE-2001-0144.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarchives.neohapsis.comarchives.neohapsis.com
Dec 31, 2002NetScreen ScreenOS 2.8 through 4.0, when forwarding H.323 or Netmeeting traffic, allows remote attackers to cause a denial of service (firewall session table coCVE-2002-2266 · Other software · Netscreen · reported by MITREMedium 5
NetScreen ScreenOS 2.8 through 4.0, when forwarding H.323 or Netmeeting traffic, allows remote attackers to cause a denial of service (firewall session table consumption) by establishing multiple half-open H.323 sessions, which are not cleaned up on garbage removal and do not time out for 36 hours.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmarc.infosecurityfocus.com
Dec 31, 2002NetScreen ScreenOS before 4.0.1 allows remote attackers to bypass the Malicious-URL blocking feature by splitting the URL into fragmented IP requests.CVE-2002-2234 · Other software · Netscreen · reported by MITREMedium 4.3
NetScreen ScreenOS before 4.0.1 allows remote attackers to bypass the Malicious-URL blocking feature by splitting the URL into fragmented IP requests.
- Product
- Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarchives.neohapsis.comarchives.neohapsis.com
Dec 31, 2002Firewalls from multiple vendors empty state tables more slowly than they are filled, which allows remote attackers to flood state tables with packet flooding atCVE-2002-2150 · Network & remote access · Juniper · reported by MITREMedium 5
Firewalls from multiple vendors empty state tables more slowly than they are filled, which allows remote attackers to flood state tables with packet flooding attacks such as (1) TCP SYN flood, (2) UDP flood, or (3) Crikey CRC Flood, which causes the firewall to refuse any new connections.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 4, 2002The web interface (WebUI) of NetScreen ScreenOS before 2.6.1r8, and certain 2.8.x and 3.0.x versions before 3.0.3r1, allows remote attackers to cause a denial oCVE-2002-0891 · Network & remote access · Juniper · reported by MITREMedium 5
The web interface (WebUI) of NetScreen ScreenOS before 2.6.1r8, and certain 2.8.x and 3.0.x versions before 3.0.3r1, allows remote attackers to cause a denial of service (crash) via a long user name.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordonline.securityfocus.comiss.net
May 29, 2002NetScreen ScreenOS before 2.6.1 does not support a maximum number of concurrent sessions for a system, which allows an attacker on the trusted network to cause CVE-2002-0234 · Network & remote access · Juniper · reported by MITRELow 2.1
NetScreen ScreenOS before 2.6.1 does not support a maximum number of concurrent sessions for a system, which allows an attacker on the trusted network to cause a denial of service (resource exhaustion) via a port scan to an external network, which consumes all available connections.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 22, 2001NetScreen ScreenOS prior to 2.5r6 on the NetScreen-10 and Netscreen-100 can allow a local attacker to bypass the DMZ 'denial' policy via specific traffic patterCVE-2001-0589 · Network & remote access · Juniper · reported by MITRELow 2.1
NetScreen ScreenOS prior to 2.5r6 on the NetScreen-10 and Netscreen-100 can allow a local attacker to bypass the DMZ 'denial' policy via specific traffic patterns.
- Product
- Netscreen Screenos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarchives.neohapsis.comosvdb.org
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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