{"id":"CVE-2026-24303","aliases":["EUVD-2026-25303","GHSA-59wx-rpwf-57h6"],"status":"published","title":"Microsoft Partner Center Elevation of Privilege Vulnerability","description":"Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00389,"percentile":0.33505,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2026-04-23T21:37:41Z","modified":"2026-10-26T21:10:00Z","products":[{"vendor":"microsoft","product":"microsoft partner center"},{"vendor":"microsoft","product":"partner_center"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24303","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24303"},{"url":"https://github.com/advisories/GHSA-59wx-rpwf-57h6"}],"sources":{"cve":[{"id":"CVE-2026-24303","title":"Microsoft Partner Center Elevation of Privilege Vulnerability","description":"Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-04-23T21:37:41.267Z","modified":"2026-10-15T15:53:49.076Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:19:50.575061Z"}],"euvd":[{"id":"EUVD-2026-25303","description":"Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-04-23T21:37:41Z","modified":"2026-10-15T15:53:49Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T17:00:12.42385Z"}],"ghsa":[{"id":"GHSA-59wx-rpwf-57h6","title":"Improper access control in Microsoft Partner Center allows an authorized attacker to elevate...","description":"Improper access control in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-04-24T00:31:51Z","modified":"2026-04-24T00:31:58Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:07:37.11234Z"}],"nvd":[{"id":"CVE-2026-24303","description":"Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-04-23T22:16:22.483Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:15.867234Z"}]}}