Known Exploited Vulnerability: CVE-2011-2005

Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability

Catalog version: 2026.06.18 Date added: 2022-03-28 Due date: 2022-04-18 CISA catalog

Vendor: Microsoft

Product: Ancillary Function Driver (afd.sys)

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: Unknown

Notes: https://nvd.nist.gov/vuln/detail/CVE-2011-2005

CWEs

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