Risk Letters

Exploited vulnerability

CVE-2011-2005

TLP:CLEAR

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

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.

Facts

  • Vendor: Microsoft
  • Product: Ancillary Function Driver (afd.sys)
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 31.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 28 March 2022
  • First known exploitation: 28 March 2022
  • CISA's deadline for US federal agencies: 18 April 2022
  • Weakness: CWE-264
  • First seen by Risk Letters: 28 March 2022

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD