CVE DATABASE / CVE-2010-4398
CVE-2010-4398
Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability
Confirmed exploited in the wild. Added 2022-03-28.
Federal remediation due 2022-04-21.
Required action: Apply updates per vendor instructions.
Summary
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."
CVSS 3.1 breakdown
| Base score | 7.8 (HIGH) |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
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References
- http://isc.sans.edu/diary.html?storyid=9988
- http://nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/
- http://secunia.com/advisories/42356
- http://support.avaya.com/css/P8/documents/100127248
- http://twitter.com/msftsecresponse/statuses/7590788200402945
- http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/
- http://www.exploit-db.com/exploits/15609/
- http://www.kb.cert.org/vuls/id/529673
- http://www.securityfocus.com/bid/45045
- http://www.securitytracker.com/id?1025046
- http://www.vupen.com/english/advisories/2011/0324
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4398
Data: NIST NVD + CISA KEV. NVD last modified 2026-04-21. Always verify against the vendor advisory before acting.