{"id":"CVE-2019-1322","published":"2019-10-10T14:15:16Z","modified":"2026-06-17T02:28:22Z","title":"Microsoft Windows Privilege Escalation Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1320, CVE-2019-1340.","provenance":"source","from":"NVD"},"summary":{"text":"An elevation of privilege flaw in Microsoft Windows stems from improper handling of authentication requests by the operating system. An attacker who already has local access and low-privileged credentials, with no user interaction required, could exploit it to gain elevated privileges on the affected system.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T06:59:52Z"},"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":0.18843,"percentile":0.97276,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-03-15","dueDate":"2022-04-05","ransomware":true,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-1322","provenance":"source"},"vulncheckKev":{"dateAdded":"2020-03-27","exploitedFirstSeen":"2020-03-27","ransomware":true,"evidence":[{"url":"https://www.group-ib.com/media/silence_ta505_attacks_in_europe/","date":"2020-03-27"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-03-15"},{"url":"https://www.tenable.com/blog/contileaks-chats-reveal-over-30-vulnerabilities-used-by-conti-ransomware-affiliates","date":"2022-03-24"},{"url":"https://www.securin.io/articles/all-about-conti-ransomware/","date":"2022-06-29"},{"url":"https://asec.ahnlab.com/en/38156/","date":"2022-09-01"},{"url":"https://go.group-ib.com/hubfs/report/protected/group-ib-opera1er-full-threat-research-2022-en.pdf","date":"2022-11-03"},{"url":"https://asec.ahnlab.com/en/56236/","date":"2023-08-22"}],"evidenceTotal":7,"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":[],"references":[{"url":"http://packetstormsecurity.com/files/155723/Microsoft-UPnP-Local-Privilege-Elevation.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1322","tags":["Patch","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/155723/Microsoft-UPnP-Local-Privilege-Elevation.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1322","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1322","tags":["US Government Resource"]}],"techniques":[{"id":"T1068","name":"Exploitation for Privilege Escalation","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Local attacker escalates privileges via authentication handling flaw","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"An elevation of privilege vulnerability exists when Windows improperly handles authentication requests","start":0,"end":102}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"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: Privilege gain yields valid, elevated account usage","mappingType":"primary_impact","evidence":[{"from":"description","quote":"An elevation of privilege vulnerability exists when Windows improperly handles authentication requests","start":0,"end":102}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2019-9881","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-9881","exploited":true,"exploitedSince":"2022-03-15","provenance":"source"},"exploits":[{"id":47684,"url":"https://www.exploit-db.com/exploits/47684","title":"Microsoft Windows 10 Build 1803 < 1903 - 'COMahawk' Local Privilege Escalation","type":"local","platform":"windows","date":"2019-11-14","verified":false,"provenance":"source"},{"id":47805,"url":"https://www.exploit-db.com/exploits/47805","title":"Microsoft UPnP - Local Privilege Elevation (Metasploit)","type":"local","platform":"windows","date":"2019-12-30","verified":true,"provenance":"source"},{"id":47805,"url":"https://www.exploit-db.com/exploits/47805","title":"Microsoft UPnP - Local Privilege Elevation (Metasploit)","type":"local","platform":"windows","date":"2019-12-30","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":3,"earliest":"2019-11-14"},"metasploit":[{"name":"Microsoft UPnP Local Privilege Elevation 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