{"id":"CVE-2026-70087","published":"2026-10-13T18:59:37Z","modified":"2026-10-30T19:03:11Z","title":"Role: DNS Server Security Feature Bypass Vulnerability","vendor":"Microsoft","product":"Windows 10 Version 1607","tier":"tail","description":{"text":"Incorrect authorization in DNS Server allows an authorized attacker to bypass a security feature locally.","provenance":"source","from":"CVE.org"},"cvss":{"score":5.5,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.0032,"percentile":0.24994,"provenance":"source"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70087","tags":["vendor-advisory","patch"]}],"priority":{"score":8.8,"factors":[{"name":"EPSS percentile","points":5.0},{"name":"CVSS severity","points":3.85}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Windows 10 Version 1607","versions":[">= 10.0.14393.0, < 10.0.14393.9612"]},{"vendor":"Microsoft","product":"Windows 10 Version 1809","versions":[">= 10.0.17763.0, < 10.0.17763.9376"]},{"vendor":"Microsoft","product":"Windows Server 2012","versions":[">= 6.2.9200.0, < 6.2.9200.26434"]},{"vendor":"Microsoft","product":"Windows Server 2012 (Server Core installation)","versions":[">= 6.2.9200.0, < 6.2.9200.26434"]},{"vendor":"Microsoft","product":"Windows Server 2012 R2","versions":[">= 6.3.9600.0, < 6.3.9600.23470"]},{"vendor":"Microsoft","product":"Windows Server 2012 R2 (Server Core installation)","versions":[">= 6.3.9600.0, < 6.3.9600.23470"]},{"vendor":"Microsoft","product":"Windows Server 2016","versions":[">= 10.0.14393.0, < 10.0.14393.9612"]},{"vendor":"Microsoft","product":"Windows Server 2016 (Server Core installation)","versions":[">= 10.0.14393.0, < 10.0.14393.9612"]},{"vendor":"Microsoft","product":"Windows Server 2019","versions":[">= 10.0.17763.0, < 10.0.17763.9376"]},{"vendor":"Microsoft","product":"Windows Server 2019 (Server Core installation)","versions":[">= 10.0.17763.0, < 10.0.17763.9376"]}],"euvd":{"id":"EUVD-2026-99154","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-863"}}