A local attacker can overwrite arbitrary files on the system with VPN client logs using…
Priority LOW 27Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A local attacker can overwrite arbitrary files on the system with VPN client logs using administrator privileges, potentially resulting in a denial of service and data loss, in all versions of Sophos SSL VPN client.
Why it matters now
EPSS 0.0023 13th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36809
- 2026-10-03 Alias added: GHSA-c7p5-h3xc-723m
References
Sources
- CVE-2021-36809 · CVE Program
- CVE-2021-36809 · NVD
- FIRST EPSS
- GHSA-c7p5-h3xc-723m · GitHub Advisory Database · CC BY 4.0
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