{"id":"CVE-2019-1315","published":"2019-10-10T14:15:15Z","modified":"2026-06-17T02:28:21Z","title":"Microsoft Windows Error Reporting Manager Privilege Escalation Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"An elevation of privilege vulnerability exists when Windows Error Reporting manager improperly handles hard links, aka 'Windows Error Reporting Manager Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1339, CVE-2019-1342.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is in the Windows Error Reporting manager component of Microsoft Windows, which improperly handles hard links. An attacker with local access and low-privilege credentials, requiring no user interaction, can exploit it to elevate their privileges.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T08:31:13Z"},"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":0.03478,"percentile":0.891,"date":"2026-10-31","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-2019-1315","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-03-15","exploitedFirstSeen":"2022-03-15","ransomware":true,"evidence":[{"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"}],"evidenceTotal":3,"provenance":"source"},"exploited":true,"otx":null,"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1315","tags":["Patch","Vendor Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1315","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1315","tags":["US Government Resource"]}],"techniques":[{"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 attacker with low privileges exploits it","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"An elevation of privilege vulnerability exists when Windows Error Reporting manager improperly handles hard links","start":0,"end":113}],"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: Escalates privileges via hard link handling","mappingType":"primary_impact","evidence":[{"from":"description","quote":"An elevation of privilege vulnerability exists when Windows Error Reporting manager improperly handles hard links","start":0,"end":113}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2019-9874","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-9874","exploited":true,"exploitedSince":"2022-03-15","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2019-10-29","earliestUrl":"https://github.com/Mayter/CVE-2019-1315","repos":[{"name":"Mayter/CVE-2019-1315","url":"https://github.com/Mayter/CVE-2019-1315","stars":10,"created":"2019-10-29"}]},"first":{"date":"2019-10-29","source":"PoC-in-GitHub","url":"https://github.com/Mayter/CVE-2019-1315"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"ai"},{"stage":"primary","techniques":["T1068"],"provenance":"ai"}],"timeline":[{"date":"2019-10-10","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1315","provenance":"source"},{"date":"2019-10-29","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/Mayter/CVE-2019-1315","provenance":"source"},{"date":"2022-03-15","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2022-03-15","kind":"kev","label":"Added to CISA KEV (known ransomware use)","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-03-15","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-9874","provenance":"source"}],"speed":{"daysToPublicExploit":19,"firstExploitFrom":"PoC-in-GitHub","daysToKev":887},"priority":{"score":73.3,"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 1692 days ago"},{"name":"Known ransomware use","points":10.0,"detail":"CISA KEV and VulnCheck KEV: Known"},{"name":"EPSS percentile","points":17.82,"detail":"percentile 0.8910"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":5.46,"detail":"base score 7.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-59"}}