CVE-2010-4398
microsoft windows 7, microsoft windows server 2003, microsoft windows server 2008
Published 6 Dec 2010 · updated 16 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 28 Mar 2022, with a remediation deadline of 21 Apr 2022 for US federal agencies.
Required action: Apply updates per vendor instructions.
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?storyid=9988 · Exploit, Issue Tracking
- nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/ · Broken Link
- secunia.com/advisories/42356 · Broken Link, Vendor Advisory
- support.avaya.com/css/P8/documents/100127248 · Third Party Advisory
- twitter.com/msftsecresponse/statuses/7590788200402945 · Not Applicable
- www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/ · Broken Link, Exploit, Third Party Advisory
- www.exploit-db.com/exploits/15609/ · Exploit, Third Party Advisory, VDB Entry
- www.kb.cert.org/vuls/id/529673 · Third Party Advisory, US Government Resource
- www.securityfocus.com/bid/45045 · Broken Link, Third Party Advisory, VDB Entry
- www.securitytracker.com/id?1025046 · Broken Link, Third Party Advisory, VDB Entry
- www.vupen.com/english/advisories/2011/0324 · Broken Link
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011 · Patch, Vendor Advisory
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162 · Broken Link
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4398 · US Government Resource