{"version":"https://jsonfeed.org/version/1.1","title":"Patchfirst: CVEs linked to T1016 System Network Configuration Discovery","home_page_url":"https://patchfirst.co/technique/T1016/","feed_url":"https://patchfirst.co/feed/technique/T1016.json","description":"New and newly exploited CVEs that lead to ATT&CK T1016 System Network Configuration Discovery, with CISA KEV and EPSS context. Newest 50 by publication or KEV listing.","language":"en-GB","items":[{"id":"CVE-2021-40449#kev","url":"https://patchfirst.co/cve/CVE-2021-40449/","title":"[KEV] CVE-2021-40449: Microsoft Windows Win32k Privilege Escalation Vulnerability","content_text":"Microsoft · Windows. In CISA KEV since 2021-11-17, known ransomware use. ENISA EUVD lists it as exploited. EPSS 81.9% (higher than 99.65% of CVEs). CVSS 7.8 HIGH. Public exploit code exists. ATT&CK: T1566 Phishing; T1068 Exploitation for Privilege Escalation; T1016 System Network Configuration Discovery; T1027 Obfuscated Files or Information; T1059.003 Windows Command Shell; T1071.001 Web Protocols; +2 more. Priority 78.4 of 100.","summary":"Microsoft Windows Win32k Privilege Escalation Vulnerability","date_published":"2021-11-17T00:00:00.000Z","date_modified":"2026-06-17T04:06:56.000Z","tags":["kev","ransomware","public-exploit","T1566","T1068","T1016","T1027","T1059.003","T1071.001","T1082","T1573.001"],"_patchfirst":{"reason":"kev","priority":78.4,"kev":{"dateAdded":"2021-11-17","ransomware":true},"epss":{"score":0.81936,"percentile":0.9965},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1"},"vendor":"Microsoft","product":"Windows","techniqueIds":["T1566","T1068","T1016","T1027","T1059.003","T1071.001","T1082","T1573.001"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}}]}