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CVE-2011-2005CISA KEV

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

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEVCheck MSRC

CISA catalog record

afd.sys in the Ancillary Function Driver in Microsoft Windows does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application.

Product
Ancillary Function Driver (afd.sys)
Added to KEV
28 Mar 2022
Federal remediation due
18 Apr 2022
Known ransomware use
Not reported
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (2)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  2. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2011-2005. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2011-2005 · CVE overview and exploitation status

cve-program · CVE-2011-2005

Related changes

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Sources read 13 Nov 18:29 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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