{"id":"CVE-2026-50426","aliases":["EUVD-2026-43945","GHSA-8489-g9w2-ccx7"],"status":"published","title":"Windows DNS Server Remote Code Execution Vulnerability","description":"Relative path traversal in DNS Server allows an authorized attacker to execute code over an adjacent network.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00558,"percentile":0.46814,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-23"],"published":"2026-07-14T17:07:15Z","modified":"2026-11-01T17:34:55Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50426","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50426"},{"url":"https://github.com/advisories/GHSA-8489-g9w2-ccx7"}],"sources":{"cve":[{"id":"CVE-2026-50426","title":"Windows DNS Server Remote Code Execution Vulnerability","description":"Relative path traversal in DNS Server allows an authorized attacker to execute code over an adjacent network.","status":"published","published":"2026-07-14T17:07:15.031Z","modified":"2026-11-01T17:34:55.872Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-23"],"updated_at":"2026-11-02T14:20:09.098623Z"}],"euvd":[{"id":"EUVD-2026-43945","description":"Relative path traversal in DNS Server allows an authorized attacker to execute code over an adjacent network.","status":"published","published":"2026-07-14T17:07:15Z","modified":"2026-11-01T17:34:55Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:48.316156Z"}],"ghsa":[{"id":"GHSA-8489-g9w2-ccx7","title":"Relative path traversal in DNS Server allows an authorized attacker to execute code over an...","description":"Relative path traversal in DNS Server allows an authorized attacker to execute code over an adjacent network.","status":"published","published":"2026-07-14T18:32:22Z","modified":"2026-07-14T18:32:27Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-23"],"updated_at":"2026-11-02T15:09:29.53235Z"}],"nvd":[{"id":"CVE-2026-50426","description":"Relative path traversal in DNS Server allows an authorized attacker to execute code over an adjacent network.","status":"published","published":"2026-07-14T18:17:46.123Z","modified":"2026-07-29T19:16:46.647Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-23"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}