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CVE-2021-4040

MEDIUM
5.3
CVSS Score
Published: August 24, 2022 at 03:13 PM UTC
Updated: June 17, 2026 at 04:18 AM UTC
2 products affected across 2 vendorsAMQ BrokerArtemis

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Severity
MEDIUM5.3
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Artemis· Apachemaven
95%
v < 2.19.1
Affected range stops below 2.19.1, so it looks safe — our inference, not a vendor statement
AMQ Broker· Red Hatrpm
95%
v < 7.10.0
Vendor states this is fixed in 2.19.1 (unaffected)
Affected range stops below 7.10.0, so it looks safe — our inference, not a vendor statement

References (4)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2021-4040
x_refsource_MISCIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2028254
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/apache/activemq-artemis/pull/3871/commits
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://issues.apache.org/jira/browse/ARTEMIS-3593

CVSS

5.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-787

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