Updated 8 h ago

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.

1,762exploited flaws on CISA’s list

34added in the last 30 days

343new WordPress flaws this week

390,080entries in the database

22 results

Oct 30, 2024In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto mCVE-2024-10525 · Other software · Eclipse Foundation · reported by emo@eclipse.orgHigh 7.2
In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosquitto_sub and mosquitto_rr clients.
Product
mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com gitlab.eclipse.org
Oct 11, 2024In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CVE-2024-8376 · Other software · Eclipse Foundation · reported by emo@eclipse.orgHigh 7.2
In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CONNECT", "DISCONNECT", "SUBSCRIBE", "UNSUBSCRIBE" and "PUBLISH" packets.
Product
Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 1, 2023The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with dupliCVE-2023-28366 · Other software · Eclipse · reported by MITREHigh 7.5
The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.
Product
Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Dec 1, 2021In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leCVE-2021-41039 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org debian.org
Aug 30, 2021In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked wheCVE-2021-34434 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 5.3
In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.fedoraproject.org
Jul 27, 2021In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.CVE-2021-34432 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org bugs.eclipse.org
Jul 22, 2021In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leaCVE-2021-34431 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 6.5
In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org bugs.eclipse.org
Apr 14, 2021The Windows Installation component of TIBCO Software Inc.'s TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Community Edition and TIBCO Messaging - CVE-2021-28826 · Other software · TIBCO Software Inc. · reported by security@tibco.comHigh 8.8
The Windows Installation component of TIBCO Software Inc.'s TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Community Edition and TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Enterprise Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component. This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Community Edition: versions 1.3.0 and below and TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Enterprise Edition: versions 1.3.0 and below.
Product
TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Community Edition
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record tibco.com tibco.com
Apr 14, 2021The Windows Installation component of TIBCO Software Inc.'s TIBCO Messaging - Eclipse Mosquitto Distribution - Core - Community Edition and TIBCO Messaging - EcCVE-2021-28825 · Other software · TIBCO Software Inc. · reported by security@tibco.comHigh 8.8
The Windows Installation component of TIBCO Software Inc.'s TIBCO Messaging - Eclipse Mosquitto Distribution - Core - Community Edition and TIBCO Messaging - Eclipse Mosquitto Distribution - Core - Enterprise Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component. This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO Messaging - Eclipse Mosquitto Distribution - Core - Community Edition: versions 1.3.0 and below and TIBCO Messaging - Eclipse Mosquitto Distribution - Core - Enterprise Edition: versions 1.3.0 and below.
Product
TIBCO Messaging - Eclipse Mosquitto Distribution - Core - Community Edition
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record tibco.com tibco.com
Apr 7, 2021In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL poiCVE-2021-28166 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 6.5
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org bugs.eclipse.org
Sep 19, 2019In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or moCVE-2019-11779 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 6.5
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Sep 18, 2019If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a sessionCVE-2019-11778 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 5.4
If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org bugs.eclipse.org
Mar 27, 2019In Eclipse Mosquitto version from 1.0 to 1.4.15, a Null Dereference vulnerability was found in the Mosquitto library which could lead to crashes for those appliCVE-2017-7655 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In Eclipse Mosquitto version from 1.0 to 1.4.15, a Null Dereference vulnerability was found in the Mosquitto library which could lead to crashes for those applications using the library.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.debian.org
Mar 27, 2019When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will beCVE-2018-12551 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 8.1
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.debian.org
Mar 27, 2019When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, CVE-2018-12550 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 8.1
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.debian.org
Mar 27, 2019In Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) when a client publishes a retained message to a topic, then has its access to that topic revoked, the retaCVE-2018-12546 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 6.5
In Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) when a client publishes a retained message to a topic, then has its access to that topic revoked, the retained message will still be published to clients that subscribe to that topic in the future. In some applications this may result in clients being able cause effects that would otherwise not be allowed.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org bugs.eclipse.org
Dec 13, 2018Eclipse Mosquitto 1.5.x before 1.5.5 allows ACL bypass: if the option per_listener_settings was set to true, and the default listener was in use, and the defaulCVE-2018-20145 · Other software · Eclipse · reported by MITREHigh 7.5
Eclipse Mosquitto 1.5.x before 1.5.5 allows ACL bypass: if the option per_listener_settings was set to true, and the default listener was in use, and the default listener specified an acl_file, then the acl file was being ignored.
Product
Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Nov 15, 2018In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g.CVE-2018-12543 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org bugs.eclipse.org
Jun 5, 2018In Eclipse Mosquitto 1.4.15 and earlier, a Memory Leak vulnerability was found within the Mosquitto Broker.CVE-2017-7654 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In Eclipse Mosquitto 1.4.15 and earlier, a Memory Leak vulnerability was found within the Mosquitto Broker. Unauthenticated clients can send crafted CONNECT packets which could cause a denial of service in the Mosquitto Broker.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.debian.org
Jun 5, 2018The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8.CVE-2017-7653 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgMedium 5.3
The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.oasis-open.org bugs.eclipse.org
Apr 25, 2018In Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration toCVE-2017-7652 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration to be reloaded from disk. If there are lots of clients connected so that there are no more file descriptors/sockets available (default limit typically 1024 file descriptors on Linux), then opening the configuration file will fail.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.debian.org
Apr 24, 2018In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload.CVE-2017-7651 · Other software · The Eclipse Foundation · reported by emo@eclipse.orgHigh 7.5
In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.
Product
Eclipse Mosquitto
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.eclipse.org lists.debian.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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