{"id":"CVE-2023-38181","aliases":["EUVD-2023-42003","GHSA-hx37-jpgw-mp7v"],"status":"published","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Microsoft Exchange Server Spoofing Vulnerability","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.10796,"percentile":0.95878,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2023-08-08T17:08:55Z","modified":"2026-08-10T16:18:37Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 23"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 12"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 13"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38181","tags":["vendor-advisory","patch","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38181"},{"url":"https://github.com/advisories/GHSA-hx37-jpgw-mp7v"}],"sources":{"cve":[{"id":"CVE-2023-38181","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2023-08-08T17:08:55.897Z","modified":"2026-08-10T15:12:00.448Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:35:29.381004Z"}],"euvd":[{"id":"EUVD-2023-42003","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2023-08-08T17:08:55Z","modified":"2026-08-10T15:12:00Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:03.704262Z"}],"ghsa":[{"id":"GHSA-hx37-jpgw-mp7v","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2023-08-08T18:30:37Z","modified":"2024-04-04T06:42:47Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:56:44.910366Z"}],"nvd":[{"id":"CVE-2023-38181","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2023-08-08T18:15:22.787Z","modified":"2026-08-10T16:18:37.683Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:08:22.812138Z"}]}}