Vulnerability details

CVE-2026-118633

Sophos SG UTM
CVSS 4.0
9.2Critical

Official 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 scores

ScoreVersionSourceVector
9.2Critical 4.0 CVEProject cvelistV5 (CNA) (Sophos) CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.1High 3.1 CVEProject cvelistV5 (CNA) (Sophos) CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
Sophos SG UTM v ≤ 9.724 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-10-28
Last updated
2026-11-05
State
Published
Assigner (CNA)
Sophos
Kolun priority
36 · Medium

Exploit prediction (EPSS)

0.59%
Probability of exploitation in 30 days
48.7%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-35
    The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.