Vulnerability-Lookup

CVE-2026-92254 (GCVE-0-2026-92254)

Vulnerability from cvelistv5 – Published: 2026-09-20 12:02 – Updated: 2026-09-20 12:17

Title

WatchDog Antivirus kernel driver arbitrary file deletion via unauthenticated IOCTL

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.

Severity

6.9 (Medium)


                        
                          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

CWE

CWE-20 - Improper input validation
CWE-306 - Missing authentication for critical function

Assigner

watchdog mitre root

References

2 references

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

Impacted products

1 product

Vendor	Product	Version	CPE status
Watchdog	Anti-Virus	Affected: 1.8.640 , < 1.8.804 (semver)	guessed

Date Public

2026-09-20 11:39

Credits

Patrick Tung

Show details on NVD website

JSON

To clipboard

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            "Windows"
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          "product": "Anti-Virus",
          "vendor": "Watchdog",
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            {
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              "status": "affected",
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              "versionType": "semver"
            }
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      ],
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        }
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            "version": "4.0",
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        },
        {
          "descriptions": [
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              "description": "CWE-306 Missing authentication for critical function",
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            }
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        "dateUpdated": "2026-09-20T12:17:30.610Z",
        "orgId": "34edf4f2-2577-40ab-82ce-39f45972c129",
        "shortName": "watchdog"
      },
      "references": [
        {
          "url": "https://watchdog.com/vulnerability-disclosure-policy/"
        },
        {
          "url": "https://watchdog.com/anti-virus-release-notes/"
        }
      ],
      "source": {
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    "datePublished": "2026-09-20T12:02:34.251Z",
    "dateReserved": "2026-09-15T21:07:00.693Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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                    "status": "affected",
                    "version": "1.8.640",
                    "versionType": "semver"
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        "cveTags": [],
        "descriptions": [
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          }
        ],
        "id": "CVE-2026-92254",
        "lastModified": "2026-09-20T13:17:46.390",
        "metrics": {
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                "baseScore": 6.9,
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
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                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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            "source": "34edf4f2-2577-40ab-82ce-39f45972c129",
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          }
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        "vulnStatus": "Received",
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                "value": "CWE-306"
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            "source": "34edf4f2-2577-40ab-82ce-39f45972c129",
            "type": "Secondary"
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}

GHSA-G5CW-XV36-RR58

Vulnerability from github – Published: 2026-09-20 15:30 – Updated: 2026-09-20 15:30

Details

Severity

6.9 (Medium)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-92254"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-20T13:17:46Z",
    "severity": "MODERATE"
  },
  "details": "Missing Authorization in the IOCTL handlers of the\u00a0wsdkd.sys\u00a0kernel 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.",
  "id": "GHSA-g5cw-xv36-rr58",
  "modified": "2026-09-20T15:30:23Z",
  "published": "2026-09-20T15:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92254"
    },
    {
      "type": "WEB",
      "url": "https://watchdog.com/anti-virus-release-notes"
    },
    {
      "type": "WEB",
      "url": "https://watchdog.com/vulnerability-disclosure-policy"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.