Patchfirst
CVE-2010-0232 KEVPublic exploit High · 7.8 EPSS 28.7%

Microsoft Windows Kernel Exception Handler Vulnerability

Microsoft · Windows

Summary

The Windows kernel in Microsoft Windows NT 3.1 through Windows 7 and the listed Windows Server editions, when 16-bit application support is enabled on 32-bit x86 systems, fails to properly validate certain BIOS calls, with the flaw residing in the kernel exception handling path. A local user with low privileges and no user interaction can craft a VDM_TIB structure in the Thread Environment Block and call NtVdmControl to start the Virtual DOS Machine subsystem, which leads to improperly handled exceptions in the #GP trap handler and allows privilege escalation.

Official description · NVD

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."

Breakdown
72.0 / 100
Exploited
Yes, in CISA KEV
Reports
1
Tactics
1/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

First seen exploited 7 years after disclosure. Public exploit code (Exploit-DB) was available 2 days before disclosure.

  1. Public exploit codeExploit-DB2 days before
  2. Disclosedday 0
  3. First seen exploitedVulnCheck KEV evidence+7 yrs
  4. Added to CISA KEVEU database agrees+12 yrs

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

1 , grouped by in kill-chain order, 1 cited passage 1

Privilege EscalationTA0004

Exploitation for Privilege Escalation T1068 Medium
AI mapping from the description · how it is exploited

local user privilege escalation via kernel flaw

does not properly validate certain BIOS calls, which allows local users to gain privileges
From the official description (NVD) Original (opens in a new tab) ↗
Lower-confidence links (1)

These come from early or generic mappings, text matching, or contradict this CVE’s details (for example a public-facing technique on a bug that needs a user to open a file). Shown for completeness.

  • Stage CapabilitiesT1608 CTID attack_to_cve Phase 1 "Uncategorized" mapping (not staged by impact)

Detection

0 rules for this CVE · 31 general rules for its techniques

Rules for this CVE

0 that reference CVE-2010-0232 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Named in 1 threat report
1 reportblog-assets.f-secure.com

Reports are matched by finding the exact id CVE-2010-0232 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

15 links, grouped by NVD tag (14 duplicates merged)
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