WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTL
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Missing Authorization in the IOCTL handlers of the wsdkd.sys kernel drivers in Watchdog WatchDog Antivirus 1.8.640 (driver versions 1.3.0.0 and earlier) on Microsoft Windows allows local, low-privileged attackers to delete arbitrary files with SYSTEM privileges, bypassing NTFS access controls and potentially disabling security products or destabilizing the operating system, via crafted IOCTL requests sent to the \Device\wsdk device.
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-2026-62279 Incorrect Default Permissions in WatchDog Anti-Virus Installation DirectoryPriority LOW 27
- TI-2026-62280 Arbitrary File Write via Directory Junction in WatchDog Anti-Virus Quarantine RestorationPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92254
- 2026-10-03 Alias added: GHSA-g5cw-xv36-rr58
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-2026-62279 Incorrect Default Permissions in WatchDog Anti-Virus Installation Directory CVSS 4.0MEDIUM 5.9
- TI-2023-01365 Watchdog Anti-Virus IoControlCode wsdk-driver.sys 0x80002008 denial of service CVSS 3.1MEDIUM 5.5
Sources
- CVE-2026-92254 · CVE Program
- CVE-2026-92254 · NVD
- FIRST EPSS
- GHSA-g5cw-xv36-rr58 · 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