{"id":"CVE-2026-69355","title":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.","summary":"External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code 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-73"],"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","affected":["exchange_server_2016_cumulative_update_23 >= 15.01.0.0 < 15.01.2507.073","exchange_server_2019_cumulative_update_14 >= 15.02.0.0 < 15.02.1544.046","exchange_server_2019_cumulative_update_15 >= 15.02.0.0 < 15.02.1748.051","exchange_server_subscription_edition_rtm >= 15.02.0.0 < 15.02.2562.049"],"published":"2026-09-08","updated":"2026-09-09","sourceUpdated":"2026-09-09T10:18:10.857","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-69355","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69355","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-09T04:20:20.733059Z"},"ingestedAt":"2026-09-08T19:08:49.609Z","epss":0.00842,"epssPercentile":0.5592,"slug":"CVE-2026-69355","body":"## Overview\n\nExternal control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}