{"id":"CVE-2026-96940","title":"Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.","summary":"Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-1390"],"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","affected":["exchange_server_2016_cumulative_update_23 >= 15.01.0.0 < 15.01.2507.075","exchange_server_2019_cumulative_update_14 >= 15.02.0.0 < 15.02.1544.048","exchange_server_2019_cumulative_update_15 >= 15.02.0.0 < 15.02.1748.053","exchange_server_subscription_edition_rtm >= 15.02.0.0 < 15.02.2562.053"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T21:16:58.060","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-96940","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96940","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-02T20:14:42.856638Z"},"ingestedAt":"2026-10-02T22:33:09.842Z","slug":"CVE-2026-96940","body":"## Overview\n\nWeak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}