CVE-2014-4971

high
Published 2014-07-26 ยท Modified 2026-05-06
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
8.2

Description

Microsoft Windows XP SP3 does not validate addresses in certain IRP handler routines, which allows local users to write data to arbitrary memory locations, and consequently gain privileges, via a crafted address in an IOCTL call, related to (1) the MQAC.sys driver in the MQ Access Control subsystem and (2) the BthPan.sys driver in the Bluetooth Personal Area Networking subsystem.

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-34131 local windows
KoreLogic ยท 2014-07-21

Microsoft Windows XP SP3 - 'BthPan.sys' Arbitrary Write Privilege Escalation

Source code queued for fetch โ€” refresh in a moment.
EDB-34112 local windows
KoreLogic ยท 2014-07-19

Microsoft Windows XP SP3 - 'MQAC.sys' Arbitrary Write Privilege Escalation

Source code queued for fetch โ€” refresh in a moment.
EDB-34982 local windows_x86 verified
Metasploit ยท 2014-10-15

Microsoft Bluetooth Personal Area Networking - 'BthPan.sys' Local Privilege Escalation (Metasploit)

Source code queued for fetch โ€” refresh in a moment.
EDB-34167 local windows_x86 verified
Metasploit ยท 2014-07-25

Microsoft Windows XP SP3 - 'MQAC.sys' Arbitrary Write Privilege Escalation (Metasploit)

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

Metasploit modules

MS14-062 Microsoft Bluetooth Personal Area Networking (BthPan.sys) Privilege Escalation
Source fetch failed: fetch_error โ€” view the original via the link above.
MQAC.sys Arbitrary Write Privilege Escalation
Source code queued for fetch โ€” refresh in a moment.

OS impact

windows Windows Affected 1 release
VersionStatusFixed in
โ€” Affected โ€”

References

CWEs

CWE-20

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

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