CVE-2026-118633 — HIGH (8.1)

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-35

References

https://www.sophos.com/en-us/security-advisories/sophos-sa-20261028-utm-rce

FAQ

What is CVE-2026-118633?

CVE-2026-118633 is a vulnerability with a CVSS score of 8.1 (HIGH). 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...

How severe is CVE-2026-118633?

CVE-2026-118633 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-118633?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.