{"id":"CVE-2021-4040","aliases":["EUVD-2022-6556","GHSA-gf8c-j759-86mg"],"status":"published","title":"org.apache.activemq:artemis-core-client Vulnerable to Out-of-Bounds Write","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03194,"percentile":0.88202,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-787"],"published":"2022-08-24T15:13:07Z","modified":"2026-10-20T10:54:55Z","fixes":[{"ecosystem":"Maven","package":"org.apache.activemq:artemis-core-client","fixed_in":["2.19.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.activemq:artemis-core-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.activemq:artemis-core-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19.1"}]}],"versions":["1.0.0","1.1.0","1.2.0","1.3.0","1.4.0","1.5.0","1.5.1","1.5.2","1.5.3","1.5.4","1.5.5","1.5.6","2.0.0","2.1.0","2.10.0","2.10.1","2.11.0","2.12.0","2.13.0","2.14.0","2.15.0","2.16.0","2.17.0","2.18.0","2.19.0","2.2.0","2.3.0","2.4.0","2.5.0","2.6.0","2.6.1","2.6.2","2.6.3","2.6.4","2.7.0","2.8.0","2.8.1","2.9.0"]}],"products":[{"vendor":"apache","product":"artemis"},{"vendor":"redhat","product":"amq_broker"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2028254","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory","report","web"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-4040","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://issues.apache.org/jira/browse/ARTEMIS-3593","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/apache/activemq-artemis/pull/3871/commits","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4040","tags":["advisory"]},{"url":"https://github.com/apache/activemq-artemis/pull/3862","tags":["web"]},{"url":"https://github.com/apache/activemq-artemis/pull/3871","tags":["web"]},{"url":"https://github.com/apache/activemq-artemis/pull/3871/commits/153d2e9a979aead8dff95fbc91d659ecc7d0fb82","tags":["web"]},{"url":"https://github.com/advisories/GHSA-gf8c-j759-86mg"},{"url":"https://github.com/apache/activemq-artemis","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-4040","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","status":"published","published":"2022-08-24T15:13:07Z","modified":"2024-08-03T17:16:03.705Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:33:08.045407Z"}],"euvd":[{"id":"EUVD-2022-6556","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","status":"published","published":"2022-08-24T15:13:07Z","modified":"2024-08-03T17:16:03Z","updated_at":"2026-11-03T03:25:10.888157Z"}],"ghsa":[{"id":"GHSA-gf8c-j759-86mg","title":"org.apache.activemq:artemis-core-client Vulnerable to Out-of-Bounds Write","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","status":"published","published":"2022-08-25T00:00:27Z","modified":"2023-01-30T05:01:39Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400","CWE-787"],"updated_at":"2026-11-02T14:36:27.500048Z"}],"nvd":[{"id":"CVE-2021-4040","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","status":"published","published":"2022-08-24T16:15:09.313Z","modified":"2026-06-17T04:18:56.357Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-787"],"updated_at":"2026-11-02T14:07:06.906968Z"}],"osv":[{"id":"CVE-2021-4040","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","status":"published","published":"2022-08-24T16:15:09.313Z","modified":"2026-10-20T10:54:55.855712007Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:21.249056Z"},{"id":"GHSA-gf8c-j759-86mg","title":"org.apache.activemq:artemis-core-client Vulnerable to Out-of-Bounds Write","description":"A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.","status":"published","published":"2022-08-25T00:00:27Z","modified":"2023-11-08T04:06:47.528704Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400","CWE-787"],"updated_at":"2026-11-02T15:46:47.822182Z"}]}}