{"id":"CVE-2026-62817","title":"Windows DNS Server Remote Code Execution Vulnerability","summary":"Out-of-bounds write in Windows DNS allows an unauthorized attacker to execute code over an adjacent network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-787"],"vendor":"Microsoft","product":"Windows Server 2019","affected":["windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9121","windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9121","windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5499","windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33296","windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33296"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-07T00:00:00+00:00"},"published":"2026-08-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:24:00.920Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62817","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62817","label":"Windows DNS Server Remote Code Execution Vulnerability"}],"tags":["cve.org"],"epss":0.00668,"epssPercentile":0.50468,"ingestedAt":"2026-09-08T18:07:34.898Z","slug":"CVE-2026-62817","body":"## Overview\n\nOut-of-bounds write in Windows DNS allows an unauthorized attacker to execute code over an adjacent network.\n\n## Affected\n\n- `windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9121`\n- `windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9121`\n- `windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5499`\n- `windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33296`\n- `windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33296`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}