All vulnerabilities
CVE-2011-2005

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

Microsoft Ancillary Function Driver (afd.sys)
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 28 Mar 2022CISA KEV
Exploit odds (EPSS)31.8%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline18 Apr 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 12 Oct 2011, 01:00 UTCPublishedCVE List
  2. 30 Nov 2011Exploit code publicMetasploit
  3. 28 Mar 2022Added to CISA KEVCISA KEV

Public exploit code and templates 3

  • Exploit moduleMS11-080 AfdJoinLeaf Privilege Escalation 30 Nov 2011Metasploit
  • Local exploitMicrosoft Windows - 'AfdJoinLeaf' Local Privilege Escalation (MS11-080) (Metasploit) 10 Oct 2012Exploit-DB
  • Local exploitMicrosoft Windows XP/2003 - 'afd.sys' Local Privilege Escalation (MS11-080) 30 Nov 2011Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

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.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 4