CVE-2021-4040

mediumpriority · track · 22EPSS 0.032 · 88 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.19% (88th) EPSS

CVSS 5.3 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · OSV

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-400USCWE-400USCWE-787US

affected products (4)

Products and version ranges known to be affected.

n/a AMQ Broker≤ Fixed in v2.19.1, v2.20.0enisa_euvdEU
apache artemis< 2.19.1nvdUScpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*
redhat amq broker< 7.10.0nvdUScpe:2.3:a:redhat:amq_broker:*:*:*:*:*:*:*:*
Maven org.apache.activemq:artemis-core-client< 2.19.1osvUSpkg:maven/org.apache.activemq/artemis-core-client

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-gf8c-j759-86mgorg.apache.activemq:artemis-core-client Vulnerable to Out-of-Bounds Write2022-08-25ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2022-08-24modified 2026-06-17

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+16123 more

references (18)

External citations — patches, advisories, analysis.

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