USN-8496-1: cifs-utils vulnerability

Publication date

2 July 2026

Overview

cifs-utils could be made to run programs as an administrator.


Packages

  • cifs-utils - Common Internet File System utilities

Details

It was discovered that cifs-utils incorrectly dropped root privileges
before looking up user information. A local attacker could possibly use
this issue to execute arbitrary code as the root user.

It was discovered that cifs-utils incorrectly dropped root privileges
before looking up user information. A local attacker could possibly use
this issue to execute arbitrary code as the root user.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute cifs-utils –  2:7.4-1ubuntu0.26.04.1
25.10 questing cifs-utils –  2:7.4-1ubuntu0.25.10.1
24.04 LTS noble cifs-utils –  2:7.0-2ubuntu0.3
22.04 LTS jammy cifs-utils –  2:6.14-1ubuntu0.4

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