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CVE-2010-4398

7.8
HIGHCVSS v3.1 Base Score
7.75%
LOW RiskEPSS (92nd percentile)
KEV

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."

Published: 12/6/2010
Modified: 4/21/2026
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability

Vendor / Product:

Microsoft Windows

Required Action:

Apply updates per vendor instructions.

Due Date: 4/21/2022(OVERDUE)
Added to KEV:

3/28/2022

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2010-4398

Vulnerability Summary

CVSS v3 Score

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2 Score

7.2

AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

7.75%LOW Exploitation Risk
92nd percentile

This vulnerability has a 7.75% probability of being exploited in the next 30 days, ranking higher than 92% of all scored CVEs.

CWE Classification

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