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CVE-2010-4398

HIGH CISA 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: Dec 6, 2010 Modified: Apr 21, 2026
CWE-787 CWE-787

CVSS Metrics

CVSSv3
Attack Vector: LOCAL Attack Complexity: LOW Privileges Required: LOW User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

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

Affected Products (9)

Vendor Product Version
microsoft windows_7 -
microsoft windows_server_2003 -
microsoft windows_server_2008 -
microsoft windows_server_2008 -
microsoft windows_server_2008 r2
microsoft windows_vista -
microsoft windows_vista -
microsoft windows_xp -
microsoft windows_xp -

GitHub Security Advisory GHSA-v6fx-3qcr-2mfg

Stack-based buffer overflow in the RtlQueryRegistryValues function in win32k.sys in Microsoft...

Risk Scores

CVSS Score 7.8 / 10
EPSS Score 7.75%

Top 8% most likely to be exploited

Threat Score 63.5 / 100

CISA Known Exploited

Date Added: 2022-03-28
Due Date: 2022-04-21
Required Action:

Apply updates per vendor instructions.

Data Sources

NVD CISA KEV EPSS GitHub