{"id":"CVE-2010-4398","published":"2010-12-06T13:44:54Z","modified":"2026-06-16T23:24:42Z","title":"Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"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.\"","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is a stack-based buffer overflow in the RtlQueryRegistryValues function within win32k.sys, a Windows kernel component, affecting 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. A local user with low privileges who supplies a crafted REG_BINARY value for the SystemDefaultEUDCFont registry key can gain elevated privileges and bypass User Account Control, with no user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:07:33Z"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.08661,"percentile":0.95099,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-03-28","dueDate":"2022-04-21","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2010-4398","provenance":"source"},"vulncheckKev":{"dateAdded":"2016-04-01","exploitedFirstSeen":"2016-04-01","ransomware":false,"evidence":[{"url":"https://www2.fireeye.com/rs/848-DID-242/images/rpt-fin6.pdf","date":"2016-04-01"},{"url":"https://www.recordedfuture.com/russian-apt-toolkits","date":"2016-08-04"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-03-28"},{"url":"https://securelist.com/sas-ctf-windows-7-challenge-explained/114180/","date":"2024-10-17"}],"evidenceTotal":4,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"references":[{"url":"http://isc.sans.edu/diary.html?storyid=9988","tags":["Exploit","Issue Tracking"]},{"url":"http://nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/","tags":["Broken Link"]},{"url":"http://secunia.com/advisories/42356","tags":["Broken Link","Vendor Advisory"]},{"url":"http://support.avaya.com/css/P8/documents/100127248","tags":["Third Party Advisory"]},{"url":"http://twitter.com/msftsecresponse/statuses/7590788200402945","tags":["Not Applicable"]},{"url":"http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/","tags":["Broken Link","Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.exploit-db.com/exploits/15609/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.kb.cert.org/vuls/id/529673","tags":["Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/45045","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id?1025046","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.vupen.com/english/advisories/2011/0324","tags":["Broken Link"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011","tags":["Patch","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162","tags":["Broken Link"]},{"url":"http://isc.sans.edu/diary.html?storyid=9988","tags":["Exploit","Issue Tracking"]},{"url":"http://nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/","tags":["Broken Link"]},{"url":"http://secunia.com/advisories/42356","tags":["Broken Link","Vendor Advisory"]},{"url":"http://support.avaya.com/css/P8/documents/100127248","tags":["Third Party Advisory"]},{"url":"http://twitter.com/msftsecresponse/statuses/7590788200402945","tags":["Not Applicable"]},{"url":"http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/","tags":["Broken Link","Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.exploit-db.com/exploits/15609/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.kb.cert.org/vuls/id/529673","tags":["Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/45045","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id?1025046","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.vupen.com/english/advisories/2011/0324","tags":["Broken Link"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011","tags":["Patch","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162","tags":["Broken Link"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4398","tags":["US Government Resource"]}],"techniques":[{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 1)","mappingType":"uncategorized","evidence":[],"confidence":"low","confidenceNote":"CTID attack_to_cve Phase 1 \"Uncategorized\" mapping (not staged by impact)"},{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: local user already has valid account access","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows local users to gain privileges","start":223,"end":260}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1068","name":"Exploitation for Privilege Escalation","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: stack overflow yields local privilege escalation","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows local users to gain privileges","start":223,"end":260}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1548","name":"Abuse Elevation Control Mechanism","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: UAC bypass abuses elevation control mechanism","mappingType":"primary_impact","evidence":[{"from":"description","quote":"bypass the User Account Control (UAC) feature","start":266,"end":311}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[{"id":"SRC-965fe7ffde65d044b893","title":"THE DUKES 7 YEARS OF RUSSIAN CYBERESPIONAGE","publisher":"blog-assets.f-secure.com","url":"https://blog-assets.f-secure.com/wp-content/uploads/2020/03/18122307/F-Secure_Dukes_Whitepaper.pdf","date":null,"mentions":[{"quote":"exploit either of the publicly known CVE-2010-0232 or CVE-2010- 4398 privilege escalation","start":60696,"end":60785},{"quote":"We believe that the exploit for CVE- 2010-4398 was also based on a publicly","start":60994,"end":61069},{"quote":"Exploit Database; CVE: 2010-4398; published 24 November 2014; [Online].","start":88461,"end":88532}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2010-4367","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-4367","exploited":true,"exploitedSince":"2022-03-28","provenance":"source"},"exploits":[{"id":15609,"url":"https://www.exploit-db.com/exploits/15609","title":"Microsoft Windows Vista/7 - Local Privilege Escalation (UAC Bypass)","type":"local","platform":"windows","date":"2010-11-24","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2010-11-24"},"first":{"date":"2010-11-24","source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/15609"},"provenance":"source"},"exploitRefs":["http://isc.sans.edu/diary.html?storyid=9988","http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/","http://www.exploit-db.com/exploits/15609/"],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"ai"},{"stage":"primary","techniques":["T1068","T1548"],"provenance":"ai"},{"stage":"related","techniques":["T1203"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2010-11-24","kind":"exploit-public","label":"First public exploit: Exploit-DB (EDB-15609)","url":"https://www.exploit-db.com/exploits/15609","provenance":"source"},{"date":"2010-12-06","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2010-4398","provenance":"source"},{"date":"2016-04-01","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www2.fireeye.com/rs/848-DID-242/images/rpt-fin6.pdf","provenance":"source"},{"date":"2022-03-28","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-03-28","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-4367","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":"Exploit-DB","daysToKev":4130},"priority":{"score":71.3,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 3863 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS 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