Path traversal in Sophos UTM lets remote attackers run code as root
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Sophos SG UTM from 0 through 9.724 is affected. A path traversal flaw (CWE-35) lets a remote unauthenticated attacker run arbitrary code as root. The attacker must win a race condition by sustaining repeated attacks for a few minutes when the email proxy is used with scanning enabled.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for SG UTM.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-28 Threatist record created from CVE-2026-118633
- 2026-10-28 Alias added: GHSA-rwwg-8wpm-rm27
- 2026-11-05 CISA SSVC decision points changed
More Sophos vulnerabilities
- TI-2023-01568 Command injection in Sophos Web Appliance KEVCVSS 3.1CRITICAL 9.8
- TI-2022-02989 Code injection in Sophos Firewall KEVCVSS 3.1CRITICAL 9.8
- TI-2022-00937 An authentication bypass vulnerability in the User Portal and Webadmin allows a remote… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-17763 An SQL injection vulnerability in the WebAdmin of Cyberoam OS through 2020-12-04 allows… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-15463 A remote code execution vulnerability exists in the WebAdmin of Sophos SG UTM before… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-11847 Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-118633 · CVE Program
- CVE-2026-118633 · NVD
- FIRST EPSS
- GHSA-rwwg-8wpm-rm27 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences