{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45583","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","state":"PUBLISHED","assignerShortName":"microsoft","dateReserved":"2026-05-12T19:55:45.729Z","datePublished":"2026-06-09T17:04:47.793Z","dateUpdated":"2026-08-14T16:19:18.753Z"},"containers":{"cna":{"title":"Microsoft Exchange Server Remote Code Execution Vulnerability","datePublic":"2026-06-09T14:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:*","versionStartIncluding":"15.01.0.0","versionEndExcluding":"15.01.2507.071"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:*","versionStartIncluding":"15.02.0.0","versionEndExcluding":"15.02.1544.043"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:*","versionStartIncluding":"15.02.0.0","versionEndExcluding":"15.02.1748.048"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*","versionStartIncluding":"15.02.0.0","versionEndExcluding":"15.02.2562.045"}]}]}],"affected":[{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0.0","lessThan":"15.01.2507.071","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 14","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1544.043","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 15","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1748.048","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server Subscription Edition RTM","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.2562.045","versionType":"custom","status":"affected"}]}],"descriptions":[{"value":"Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.","lang":"en-US"}],"problemTypes":[{"descriptions":[{"description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en-US","type":"CWE","cweId":"CWE-94"}]}],"providerMetadata":{"orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft","dateUpdated":"2026-08-14T16:19:18.753Z"},"references":[{"name":"Microsoft Exchange Server Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-10T03:56:06.048278Z","id":"CVE-2026-45583","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-10T10:28:44.291Z"}}]}}