CISA Known Exploited Vulnerability

CVE-2011-2005

Microsoft · Ancillary Function Driver (afd.sys)

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

Date added 2022-03-28

BOD 22-01 due date 2022-04-18

CWE CWE-264

Ransomware Unknown

CISA description

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.

Required action

Apply updates per vendor instructions.

Notes & references

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

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

RA-5 · Vulnerability Monitoring and Scanning
SI-2 · Flaw Remediation
CM-6 · Configuration Settings
SI-7 · Software, Firmware, and Information Integrity
CM-8 · System Component Inventory

External lookups

NVD · CVE-2011-2005
CVE.org · CVE-2011-2005
CISA KEV catalog (canonical)