High severity8.1NVD Advisory· Published Oct 28, 2026

CVE-2026-118633

Description

A path traversal vulnerability allows a remote unauthenticated attacker to execute arbitrary code as root in Sophos UTM (all versions) after winning a race condition by sustaining repeated attacks for a few minutes when the email proxy is used with scanning enabled. Sophos UTM is end-of-life and the patch must be installed manually.

Patches

Vulnerability mechanics

References

www.sophos.com/en-us/security-advisories/sophos-sa-20261028-utm-rcenvd

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