{"id":"CVE-2026-83947","aliases":[],"title":"Azure Event Grid Spoofing Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","products":[{"vendor":"Microsoft","name":"Azure Event Grid System","platforms":[],"versions":[{"version":"-","status":"affected"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-83947"}],"remediation":[],"description":"Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.","severity":"high","score":7.7,"published":"2026-10-08T22:15:31.809Z","modified":"2026-10-28T18:21:58.682Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83947"],"sources":[{"name":"CVE","id":"CVE-2026-83947","modified":"2026-10-28T18:21:58.682Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-83947"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C","score":7.7}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:45:31.448Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-28T20:30:36.006Z","attemptedAt":"2026-10-28T20:30:36.006Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-28T20:30:36.780Z","attemptedAt":"2026-10-28T20:30:36.780Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-28T20:30:36.541Z","attemptedAt":"2026-10-28T20:30:36.541Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-28T20:30:36.502Z","attemptedAt":"2026-10-28T20:30:36.502Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-83947","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83947","modified":"2026-10-15T18:41:18.720","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","checkedAt":"2026-10-28T20:30:36.006Z"},{"source":"NVD","id":"CVE-2026-83947","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83947","modified":"2026-10-15T18:41:18.720","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","checkedAt":"2026-10-28T20:30:36.006Z"},{"source":"FIRST EPSS","id":"CVE-2026-83947","url":"https://www.first.org/epss/","probability":0.00528,"percentile":0.44548,"date":"2026-10-28","checkedAt":"2026-10-28T20:30:36.502Z"},{"source":"ENISA EUVD","id":"EUVD-2026-95396","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95396","modified":"Oct 28, 2026, 6:21:58 PM","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C","checkedAt":"2026-10-28T20:30:36.541Z"},{"source":"GitHub Advisory Database","id":"GHSA-hf67-p98c-9g49","url":"https://github.com/advisories/GHSA-hf67-p98c-9g49","modified":"2026-10-09T00:31:56Z","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","checkedAt":"2026-10-28T20:30:36.780Z"}]}