{"id":"CVE-2026-62910","title":"Microsoft Exchange Server Elevation of Privilege Vulnerability","summary":"Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-99"],"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","affected":["exchange_server_2016_cumulative_update_23 >= 15.01.0.0 < 15.01.2507.072","exchange_server_2019_cumulative_update_14 >= 15.02.0.0 < 15.02.1544.044","exchange_server_2019_cumulative_update_15 >= 15.02.0.0 < 15.02.1748.049","exchange_server_subscription_edition_rtm >= 15.02.0.0 < 15.02.2562.046"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-06T00:00:00+00:00"},"published":"2026-08-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:24:11.143Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62910","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62910","label":"Microsoft Exchange Server Elevation of Privilege Vulnerability"}],"tags":["cve.org"],"epss":0.00678,"epssPercentile":0.5051,"ingestedAt":"2026-09-08T18:07:34.897Z","slug":"CVE-2026-62910","body":"## Overview\n\nImproper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.\n\n## Affected\n\n- `exchange_server_2016_cumulative_update_23 >= 15.01.0.0 < 15.01.2507.072`\n- `exchange_server_2019_cumulative_update_14 >= 15.02.0.0 < 15.02.1544.044`\n- `exchange_server_2019_cumulative_update_15 >= 15.02.0.0 < 15.02.1748.049`\n- `exchange_server_subscription_edition_rtm >= 15.02.0.0 < 15.02.2562.046`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}