{"api_version":"1","generated_at":"2026-06-10T01:13:30+00:00","cve":"CVE-2026-45501","urls":{"html":"https://cve.report/CVE-2026-45501","api":"https://cve.report/api/cve/CVE-2026-45501.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45501","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45501"},"summary":{"title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.","state":"PUBLISHED","assigner":"microsoft","published_at":"2026-06-09 17:17:25","updated_at":"2026-06-09 23:16:54"},"problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":[{"version":"3.1","source":"secure@microsoft.com","type":"Secondary","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","data":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"}}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45501","name":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45501","refsource":"secure@microsoft.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45501","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45501","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","version":"affected 15.01.0.0 15.01.2507.069 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 14","version":"affected 15.02.0.0 15.02.1544.041 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 15","version":"affected 15.02.0.0 15.02.1748.046 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Microsoft Exchange Server Subscription Edition RTM","version":"affected 15.02.0.0 15.02.2562.043 custom","platforms":["x64-based Systems"]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-45501","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-06-09T19:52:25.296776Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-06-09T19:52:49.788Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"platforms":["x64-based Systems"],"product":"Microsoft Exchange Server 2016 Cumulative Update 23","vendor":"Microsoft","versions":[{"lessThan":"15.01.2507.069","status":"affected","version":"15.01.0.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Microsoft Exchange Server 2019 Cumulative Update 14","vendor":"Microsoft","versions":[{"lessThan":"15.02.1544.041","status":"affected","version":"15.02.0.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Microsoft Exchange Server 2019 Cumulative Update 15","vendor":"Microsoft","versions":[{"lessThan":"15.02.1748.046","status":"affected","version":"15.02.0.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Microsoft Exchange Server Subscription Edition RTM","vendor":"Microsoft","versions":[{"lessThan":"15.02.2562.043","status":"affected","version":"15.02.0.0","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*","versionEndExcluding":"15.02.2562.043","versionStartIncluding":"15.02.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:*","versionEndExcluding":"15.01.2507.069","versionStartIncluding":"15.01.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:*","versionEndExcluding":"15.02.1748.046","versionStartIncluding":"15.02.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:*","versionEndExcluding":"15.02.1544.041","versionStartIncluding":"15.02.0.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"datePublic":"2026-06-09T14:00:00.000Z","descriptions":[{"lang":"en-US","value":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network."}],"metrics":[{"cvssV3_1":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-09T21:49:57.925Z","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft"},"references":[{"name":"Microsoft Exchange Server Spoofing Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45501"}],"title":"Microsoft Exchange Server Spoofing Vulnerability"}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2026-45501","datePublished":"2026-06-09T17:04:45.533Z","dateReserved":"2026-05-12T16:07:22.619Z","dateUpdated":"2026-06-09T21:49:57.925Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-09 17:17:25","lastModifiedDate":"2026-06-09 23:16:54","problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45501","Ordinal":"1","Title":"Microsoft Exchange Server Spoofing Vulnerability","CVE":"CVE-2026-45501","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45501","Ordinal":"1","NoteData":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.","Type":"Description","Title":"Microsoft Exchange Server Spoofing Vulnerability"}]}}}