Insufficient Granularity of Access Control Affecting intel-microcode package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.02% (5th 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-UBUNTU1604-INTELMICROCODE-11786058
  • published22 Oct 2025
  • disclosed12 Aug 2025

Introduced: 12 Aug 2025

CVE-2025-22839  (opens in a new tab)
CWE-1220  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:16.04 intel-microcode.

NVD Description

Note: Versions mentioned in the description apply only to the upstream intel-microcode package and not the intel-microcode package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Insufficient granularity of access control in the OOB-MSM for some Intel(R) Xeon(R) 6 Scalable processors may allow a privileged user to potentially enable escalation of privilege via adjacent access.

CVSS Base Scores

version 3.1