# CVE-2010-4398

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."

- Page: https://www.vulneraibility.com/cve/CVE-2010-4398
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2022-03-28; CISA due date 2022-04-21
- EPSS: 8.66% (percentile 95.2)
- Public exploit code: 1 on Exploit-DB (first 2010-11-24)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-10)
- Weakness: CWE-787
- Published: 2010-12-06

## Affected

- microsoft:windows_7
- microsoft:windows_server_2003
- microsoft:windows_server_2008
- microsoft:windows_vista
- microsoft:windows_xp

## References

- [other] http://isc.sans.edu/diary.html?storyid=9988
- [other] http://www.securityfocus.com/bid/45045
- [exploit] http://www.exploit-db.com/exploits/15609/
- [other] http://nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/
- [other] http://support.avaya.com/css/P8/documents/100127248
- [other] http://www.vupen.com/english/advisories/2011/0324
- [other] http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/
- [other] http://twitter.com/msftsecresponse/statuses/7590788200402945
- [advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011
- [other] http://www.securitytracker.com/id?1025046
- [advisory] http://www.kb.cert.org/vuls/id/529673
- [advisory] http://secunia.com/advisories/42356
- [other] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4398

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.