{"id":"CVE-2026-45501","aliases":["EUVD-2026-35677","GHSA-rc45-hpv2-j3hh"],"status":"published","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00402,"percentile":0.34765,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79","CWE-918"],"published":"2026-06-09T17:04:45Z","modified":"2026-09-24T13:43:47Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"exchange_server_subscription_edition"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 23"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 14"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 15"},{"vendor":"microsoft","product":"microsoft exchange server subscription edition rtm"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45501","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45501"},{"url":"https://github.com/advisories/GHSA-rc45-hpv2-j3hh"}],"sources":{"cve":[{"id":"CVE-2026-45501","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.","status":"published","published":"2026-06-09T17:04:45.533Z","modified":"2026-09-24T13:43:47.304Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T13:46:43.922571Z"}],"euvd":[{"id":"EUVD-2026-35677","description":"Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.","status":"published","published":"2026-06-09T17:04:45Z","modified":"2026-09-24T13:43:47Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T17:27:59.112143Z"}],"ghsa":[{"id":"GHSA-rc45-hpv2-j3hh","title":"Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to...","description":"Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.","status":"published","published":"2026-06-09T18:30:50Z","modified":"2026-06-15T21:31:33Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-79","CWE-918"],"updated_at":"2026-11-02T15:08:48.16867Z"}],"nvd":[{"id":"CVE-2026-45501","description":"Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.","status":"published","published":"2026-06-09T17:17:25.88Z","modified":"2026-07-28T23:16:58.7Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-918","CWE-79"],"updated_at":"2026-11-02T14:12:23.109705Z"}]}}