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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2010-0232 — Windows 7

HIGH

CVE-2010-0232 is a high-severity (CVSS 7.8) vulnerability in microsoft windows 7. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-03-03) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

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…

Published
Updated
Affected
3 products
Patched
See advisory
Exploits
6 known
Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-03-03. Federal agencies were required to remediate by 2022-03-24.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2010-0232.

EPSS Exploitation Probability

via FIRST.org ↗
28.7%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs98th percentile — riskier than 98% of all scored CVEsHighest risk
14.7%39.7%64.6%89.6%72.6%28.7%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2010-0232 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the 10–50% band (highlighted). Counts from FIRST.org, log-scaled.

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."

Affected Products

3 products · 4 configurations
OS
windows 7microsoft
all
OS
windows 2000microsoft
all
OS
windows xpmicrosoft
all
Exploits & PoCs
6

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-11199localwindows✓ Verified

Microsoft Windows NT/2000/2003/2008/XP/Vista/7 - 'KiTrap0D' User Mode to Ring Escalation (MS10-015)

by Tavis Ormandy · Jan 19, 2010

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every microsoft windows 7 deployment and check each version against the affected-products list above.

  2. Remediation status

    No patch has shipped for CVE-2010-0232 yet — track the microsoft windows 7 advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

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 involv
O3 Security · Runtime Protection

Is CVE-2010-0232 being exploited in your environment?

Detect and block the exploit chain at execution, on systems you cannot patch yet.

CVE-2010-0232: Windows 7 DoS (High 7.8, KEV)