Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability

HIGH 7.8EXPLOITED (CISA KEV)CVE-2010-4398 · Published 06/12/2010 · updated 16/06/2026

Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 28/03/2022. Patch affected systems as an emergency.

Package	Affected versions	Patched versions
Windows Microsoft	Versions not published yet (product named by CISA KEV)

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."

References

isc.sans.edu/diary.html · Exploit
nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac · Broken Link
secunia.com/advisories/42356 · Broken Link
support.avaya.com/css/P8/documents/100127248 · Third Party Advisory
twitter.com/msftsecresponse/statuses/7590788200402945 · Not Applicable
exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror · Broken Link
exploit-db.com/exploits/15609 · Exploit
kb.cert.org/vuls/id/529673 · Third Party Advisory
securityfocus.com/bid/45045 · Broken Link
securitytracker.com/id · Broken Link
vupen.com/english/advisories/2011/0324 · Broken Link
docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011 · Patch
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162 · Broken Link
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2010-4398

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