What’s Vulnerable › Vulnerabilities

CVE-2026-92254: WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTL

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-20 · updated 2026-09-22
• Weakness: CWE-20

Description

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.

Affected products

• Watchdog Anti-Virus: from 1.8.640 before 1.8.804 — fixed in 1.8.804

How to fix

Upgrade to a fixed version: Watchdog Anti-Virus 1.8.804. Check the vendor advisory for mitigations.

References

• https://watchdog.com/anti-virus-release-notes/
• https://watchdog.com/vulnerability-disclosure-policy/

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