CVE-2011-1249

high
Published 2011-06-16 ยท Modified 2026-04-29
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
8.2

Description

The Ancillary Function Driver (AFD) in afd.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly validate user-mode input, which allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege Vulnerability."

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-40564 local windows_x86 verified
Tomislav Paskalev ยท 2016-10-18

Microsoft Windows (x86) - 'afd.sys' Local Privilege Escalation (MS11-046)

Source code queued for fetch โ€” refresh in a moment.
EDB-18755 dos windows
fb1h2s ยท 2012-04-19

Microsoft Windows - 'afd.sys' Local Kernel (PoC) (MS11-046)

Source code queued for fetch โ€” refresh in a moment.

OS impact

windows Windows Affected 3 releases
VersionStatusFixed in
r2 Affected โ€”
- Affected โ€”
โ€” Affected โ€”

References

CWEs

CWE-264

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.