# CVE-2026-118633: CVE-2026-118633

Status: published. Published: 2026-10-28. Updated: 2026-11-05.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Sophos / SG UTM: ≥ 0; ≤ 9.724 (affected, custom). Source: CNA: Sophos

## Severity and prioritization

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: Sophos

- CVSS 4.0: 9.2 (critical); 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; source: CNA: Sophos

- CVSS 4.0: 9.2 (critical); 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: security-alert@sophos.com

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: security-alert@sophos.com

- CISA KEV: No listing in collected sources

- EPSS: 0.60% as of 2026-11-05; percentile 48.57%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-35

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

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

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

## Provenance

- CNA: Sophos: https://www.cve.org/CVERecord?id=CVE-2026-118633; retrieved 2026-11-05; source updated 2026-11-05

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-118633; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-118633; retrieved 2026-11-05; source updated Not reported

Revision: c7d16ffdfadd358daa74dbf86ce63077a94e4000b118f43d5a6393f01701f258

Canonical: https://y2.dev/cve/CVE-2026-118633

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