{"id":"CVE-2026-50652","aliases":["EUVD-2026-43781","GHSA-79fq-78m6-5rrm"],"status":"published","title":"Azure Active Directory Denial of Service Vulnerability","description":"Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0173,"percentile":0.77783,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2026-07-14T17:05:38Z","modified":"2026-11-10T22:36:12Z","products":[{"vendor":"microsoft","product":".net_framework"},{"vendor":"microsoft","product":"azure active directory"},{"vendor":"microsoft","product":"azure_active_directory"},{"vendor":"microsoft","product":"microsoft .net framework 3.5"},{"vendor":"microsoft","product":"microsoft .net framework 3.5 and 4.7.2"},{"vendor":"microsoft","product":"microsoft .net framework 3.5 and 4.8"},{"vendor":"microsoft","product":"microsoft .net framework 3.5 and 4.8.1"},{"vendor":"microsoft","product":"microsoft .net framework 4.6.2/4.7/4.7.1/4.7.2"},{"vendor":"microsoft","product":"microsoft .net framework 4.8"},{"vendor":"microsoft","product":"microsoft .net framework 4.8.1"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50652","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50652"},{"url":"https://github.com/advisories/GHSA-79fq-78m6-5rrm"}],"sources":{"cve":[{"id":"CVE-2026-50652","title":"Azure Active Directory Denial of Service Vulnerability","description":"Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-07-14T17:05:38.899Z","modified":"2026-11-10T22:36:12.025Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-10T23:49:29.024872Z"}],"euvd":[{"id":"EUVD-2026-43781","description":"Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-07-14T17:05:38Z","modified":"2026-11-10T22:36:12Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:24:48.910061Z"}],"ghsa":[{"id":"GHSA-79fq-78m6-5rrm","title":"Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to...","description":"Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-07-14T18:32:05Z","modified":"2026-07-14T18:32:11Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:09:28.277582Z"}],"nvd":[{"id":"CVE-2026-50652","description":"Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-07-14T17:17:01.673Z","modified":"2026-07-24T15:41:14.763Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}