CVE-2010-4398: Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability

Vulnerability summary

CVE-2010-4398 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 28-03-2022. EPSS estimates a 8.66% chance of exploitation in the next 30 days, higher than 95% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 03-12-2010
   PublishedVulnerability first disclosed.
2. 28-03-2022
   Added to CISA KEVMicrosoft Windows Kernel Stack-Based Buffer Overflow Vulnerability
3. 21-04-2022
   CISA remediation dueApply updates per vendor instructions.
4. 22-10-2025
   Last modifiedVulnerability information updated.

Description

Stack-based buffer overflow in the RtlQueryRegistryValues function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows local users to gain privileges, and bypass the User Account Control (UAC) feature, via a crafted REG_BINARY value for a SystemDefaultEUDCFont registry key, aka "Driver Improper Interaction with Windows Kernel Vulnerability."

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.