{"id":"CVE-2026-70071","title":"Improper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally.","summary":"Improper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-347"],"vendor":"microsoft","product":"windows_10_1607","affected":["windows_10_1607 < 10.0.14393.9612","windows_10_1809 < 10.0.17763.9376","windows_server_2012","windows_server_2012 = r2","windows_server_2016 < 10.0.14393.9612","windows_server_2019 < 10.0.17763.9376","windows_server_2022 < 10.0.20348.5761","windows_server_2025 < 10.0.26100.33650"],"patched":["windows_10_1607 10.0.14393.9612","windows_10_1809 10.0.17763.9376","windows_server_2016 10.0.14393.9612","windows_server_2019 10.0.17763.9376","windows_server_2022 10.0.20348.5761","windows_server_2025 10.0.26100.33650"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T17:41:18.437","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70071","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70071","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00256,"epssPercentile":0.17182,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T20:59:22.677452Z"},"ingestedAt":"2026-10-13T19:43:28.995Z","slug":"CVE-2026-70071","body":"## Overview\n\nImproper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally.\n\n## Affected\n\n- `windows_10_1607 < 10.0.14393.9612`\n- `windows_10_1809 < 10.0.17763.9376`\n- `windows_server_2012`\n- `windows_server_2012 = r2`\n- `windows_server_2016 < 10.0.14393.9612`\n- `windows_server_2019 < 10.0.17763.9376`\n- `windows_server_2022 < 10.0.20348.5761`\n- `windows_server_2025 < 10.0.26100.33650`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_10_1607 10.0.14393.9612`\n- `windows_10_1809 10.0.17763.9376`\n- `windows_server_2016 10.0.14393.9612`\n- `windows_server_2019 10.0.17763.9376`\n- `windows_server_2022 10.0.20348.5761`\n- `windows_server_2025 10.0.26100.33650`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}