CVE-2021-26117

Activemq vulnerability

CVSS

7.5

EPSS

11.2%

EPSS pct

96th

Exploited

No known

The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. In this case, for Apache ActiveMQ Artemis prior to version 2.16.0 and Apache ActiveMQ prior to versions 5.16.1 and 5.15.14, the anonymous context is used to verify a valid users password in error, resulting in no check on the password.

Affected vendor

Apache

Affected product

Activemq

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness type (CWE)

CWE-287 — Improper Authentication

Published

2021-01-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 11.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2021-26117

Confirm whether Apache Activemq is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-26117.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-26117

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