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

Quick assessment

Affected
Watchdog Anti-Virus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Microsoft Windows 上的 Watchdog WatchDog Antivirus 1.8.60（驱动程序版本 1.3.0.0 及更早版本）中，wsdkd.sys 内核驱动程序的 IOCTL 处理程序存在缺失授权问题。本地低权限攻击者可通过向 \Device\wsdk 设备发送精心构造的 IOCTL 请求，利用此漏洞以 SYSTEM 权限删除任意文件，从而绕过 NTFS 访问控制，潜在地禁用安全产品或导致操作系统不稳定。

CVSS 6.9 · Medium
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I. Basic Information for CVE-2026-92254

Vulnerability Information
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Vulnerability Title
WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTL
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/RE:L/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Watchdog Anti-Virus 1.8.640 ~ 1.8.804 -

II. Public POCs for CVE-2026-92254

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III. Intelligence Information for CVE-2026-92254

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Vendor Pages for CVE-2026-92254 (1)

Same Patch Batch · Watchdog · 2026-09-20 · 3 CVEs total

CVE-2026-92252 5.9 MEDIUM Incorrect Default Permissions in WatchDog Anti-Virus Installation Directory
CVE-2026-92253 5.2 MEDIUM Arbitrary File Write via Directory Junction in WatchDog Anti-Virus Quarantine Restoration

IV. Related Vulnerabilities

Same product: Anti-Virus
Same vendor: Watchdog
Same weakness: CWE-20

V. Comments for CVE-2026-92254

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