Out-of-bounds Write Affecting intel-microcode package, versions *


Severity

Recommended
medium

Based on Ubuntu 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-UBUNTU2504-INTELMICROCODE-11786084
  • published22 Oct 2025
  • disclosed12 Aug 2025

Introduced: 12 Aug 2025

CVE-2025-26403  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:25.04 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:25.04 relevant fixed versions and status.

Out-of-bounds write in the memory subsystem for some Intel(R) Xeon(R) 6 processors when using Intel(R) SGX or Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via local access.

CVSS Base Scores

version 3.1