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Actively exploited · Published Dec 3, 2010 · Assigned by mitre

CVE-2010-4398

High 7.8 Exploited

In plain English

A high-severity out-of-bounds write in Windows from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on March 28, 2022). The chance it is exploited in the next 30 days is estimated at 8.7% (higher than 95% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)8.7%top 4.9% of all CVEs
Exploited in the wildYesCISA KEV since Mar 28, 2022
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Apr 21, 2022.

Official 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."

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References