Improper Certificate Validation Affecting amazon-ssm-agent package, versions <0:3.3.3572.0-1.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-AMZN2-AMAZONSSMAGENT-14882653
  • published7 Jan 2026
  • disclosed11 Jun 2025

Introduced: 11 Jun 2025

CVE-2025-22874  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 amazon-ssm-agent to version 0:3.3.3572.0-1.amzn2 or higher.
This issue was patched in ALAS2-2025-3121.

NVD Description

Note: Versions mentioned in the description apply only to the upstream amazon-ssm-agent package and not the amazon-ssm-agent package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny unintentionally disabledpolicy validation. This only affected certificate chains which contain policy graphs, which are rather uncommon.

CVSS Base Scores

version 3.1