WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTL

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-92254
StatePUBLISHED
Assignerwatchdog
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-20 13:17:46 UTC
Updated2026-09-20 13:17:46 UTC
DescriptionMissing 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.

Risk And Classification

Primary CVSS: v4.0 6.9 MEDIUM from 34edf4f2-2577-40ab-82ce-39f45972c129

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:L/U:Amber

Problem Types: CWE-20 | CWE-306 | CWE-20 CWE-20 Improper input validation | CWE-306 CWE-306 Missing authentication for critical function

VersionSourceTypeScoreSeverityVector
4.034edf4f2-2577-40ab-82ce-39f45972c129Secondary6.9MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS6.9MEDIUMCVSS: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/...

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:L/U:Amber

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Watchdog Anti-Virus affected 1.8.640 1.8.804 semver Windows

References

ReferenceSourceLinkTags
watchdog.com/vulnerability-disclosure-policy 34edf4f2-2577-40ab-82ce-39f45972c129 watchdog.com
watchdog.com/anti-virus-release-notes 34edf4f2-2577-40ab-82ce-39f45972c129 watchdog.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Patrick Tung (en)

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