Arbitrary File Write via Directory Junction in WatchDog Anti-Virus Quarantine Restoration
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Improper link resolution before file access in the quarantine restoration process of WatchDog Anti-Virus 1.8.640 on Windows allows local, low-privileged attackers to cause a quarantined file to be written to an arbitrary filesystem location by creating a directory junction at the original file path and persuading an administrator to restore the file. This may enable modification of protected files or SYSTEM-level code execution through DLL hijacking.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Anti-Virus (WatchDog) Fixed in 1.8.804
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
WatchDog Anti-Virus 1.8.804
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-62281 WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTLPriority LOW 29
- TI-2026-62279 Incorrect Default Permissions in WatchDog Anti-Virus Installation DirectoryPriority LOW 27
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92253
- 2026-10-03 Alias added: GHSA-mhp8-fvh4-c285
References
More Watchdog vulnerabilities
- TI-2022-18155 Incorrect access control in the anti-virus driver wsdkd.sys of Watchdog Antivirus… CVSS 3.1MEDIUM 6.5
- TI-2022-18165 Incorrect access control in Watchdog Anti-Virus v1.4.158 allows attackers to perform a… CVSS 3.1HIGH 7.8
- TI-2022-20360 Certain Zemana products are vulnerable to Arbitrary code injection. CVSS 3.1MEDIUM 6.7
- TI-2023-01372 Watchdog Anti-Virus IoControlCode wsdk-driver.sys 0x80002008 access control CVSS 3.1HIGH 7.1
- TI-2026-62281 WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTL CVSS 4.0MEDIUM 6.9
- TI-2026-62279 Incorrect Default Permissions in WatchDog Anti-Virus Installation Directory CVSS 4.0MEDIUM 5.9
Sources
- CVE-2026-92253 · CVE Program
- CVE-2026-92253 · NVD
- FIRST EPSS
- GHSA-mhp8-fvh4-c285 · GitHub Advisory Database · CC BY 4.0
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