{"id":"CVE-2026-69355","aliases":["EUVD-2026-73124","GHSA-q6cf-r5wm-3jxw"],"status":"published","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.","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":"2026-11-09","score":0.00913,"percentile":0.60344,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-73"],"published":"2026-09-08T17:12:44Z","modified":"2026-10-31T16:11:32Z","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-2026-69355","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69355"},{"url":"https://github.com/advisories/GHSA-q6cf-r5wm-3jxw"}],"sources":{"cve":[{"id":"CVE-2026-69355","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:12:44.552Z","modified":"2026-10-31T16:11:32.074Z","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-73"],"updated_at":"2026-11-02T13:50:16.178634Z"}],"euvd":[{"id":"EUVD-2026-73124","description":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:12:44Z","modified":"2026-10-31T16:11:32Z","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":"2026-11-02T16:58:59.513791Z"}],"ghsa":[{"id":"GHSA-q6cf-r5wm-3jxw","title":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker...","description":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:32:25Z","modified":"2026-09-08T18:32:32Z","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"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T15:11:30.562219Z"}],"nvd":[{"id":"CVE-2026-69355","description":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:18:54.91Z","modified":"2026-09-30T12:30:17.71Z","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-73"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}