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CVE-2010-0232

Microsoft Windows Kernel Exception Handler

7.8 HIGHActively exploited (CISA KEV)Public exploitEPSS 28.7%
  1. Published21 Jan 2010
  2. Added to CISA KEV3 Mar 2022
  3. Remediation due24 Mar 2022
Actively exploited (CISA KEV)

The kernel in Microsoft Windows, 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.

Added to KEV: 3 Mar 2022Federal remediation due: 24 Mar 2022

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."

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 2000all versions
Microsoft Windows 7all versions
Microsoft Windows Xpall versions

Frequently asked

Is CVE-2010-0232 being actively exploited?

Yes. CVE-2010-0232 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Mar 2022.

How severe is CVE-2010-0232?

CVE-2010-0232 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 28.7% probability of exploitation.

Which products are affected by CVE-2010-0232?

Affected products include Microsoft Windows 2000, Microsoft Windows 7, Microsoft Windows Xp.

How do I fix CVE-2010-0232?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2010-0232 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.