{"id":"CVE-2024-20655","aliases":["EUVD-2024-18370","GHSA-c2cf-p6qq-wxrr"],"status":"published","title":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","description":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","severity":{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/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":0.01408,"percentile":0.72852,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2024-01-09T17:57:01Z","modified":"2026-06-17T07:07:33Z","products":[{"vendor":"microsoft","product":"windows server 2008  service pack 2"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1 (server core installation)"},{"vendor":"microsoft","product":"windows server 2008 service pack 2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2 (server core installation)"},{"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 2022, 23h2 edition (server core installation)"},{"vendor":"microsoft","product":"windows_server_2008"},{"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_2022_23h2"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20655","tags":["vendor-advisory","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-20655"},{"url":"https://github.com/advisories/GHSA-c2cf-p6qq-wxrr"}],"sources":{"cve":[{"id":"CVE-2024-20655","title":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","description":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","status":"published","published":"2024-01-09T17:57:01.236Z","modified":"2025-06-17T20:59:10.065Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:33:56.868512Z"}],"euvd":[{"id":"EUVD-2024-18370","description":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","status":"published","published":"2024-01-09T17:57:01Z","modified":"2025-06-17T20:59:10Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T20:32:21.531807Z"}],"ghsa":[{"id":"GHSA-c2cf-p6qq-wxrr","title":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","description":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","status":"published","published":"2024-01-09T18:30:28Z","modified":"2024-01-09T18:30:38Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T14:55:22.936224Z"}],"nvd":[{"id":"CVE-2024-20655","description":"Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability","status":"published","published":"2024-01-09T18:15:48.307Z","modified":"2026-06-17T07:07:33.103Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:09:30.070039Z"}]}}