Out-of-Bounds Affecting microcode_ctl package, versions <2:2.1-53.amzn2023.0.13


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2023-MICROCODECTL-12764554
  • published16 Sept 2025
  • disclosed12 Aug 2025

Introduced: 12 Aug 2025

CVE-2025-20053  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 microcode_ctl to version 2:2.1-53.amzn2023.0.13 or higher.
This issue was patched in ALAS2023-2025-1190.

NVD Description

Note: Versions mentioned in the description apply only to the upstream microcode_ctl package and not the microcode_ctl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a privileged user to potentially enable escalation of privilege via local access.

CVSS Base Scores

version 3.1