{"api_version":"1","generated_at":"2026-05-13T07:03:18+00:00","cve":"CVE-2026-34327","urls":{"html":"https://cve.report/CVE-2026-34327","api":"https://cve.report/api/cve/CVE-2026-34327.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-34327","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-34327"},"summary":{"title":"Microsoft Partner Center Spoofing Vulnerability","description":"Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.","state":"PUBLISHED","assigner":"microsoft","published_at":"2026-05-07 22:16:34","updated_at":"2026-05-08 20:03:28"},"problem_types":["CWE-610","CWE-610 CWE-610: Externally Controlled Reference to a Resource in Another Sphere"],"metrics":[{"version":"3.1","source":"secure@microsoft.com","type":"Primary","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","data":{"baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","version":"3.1"}}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327","name":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327","refsource":"secure@microsoft.com","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34327","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34327","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Microsoft","product":"Microsoft Partner Center","version":"affected -","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"34327","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"microsoft","cpe5":"partner_center","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"34327","cve":"CVE-2026-34327","epss":"0.001440000","percentile":"0.342440000","score_date":"2026-05-12","updated_at":"2026-05-13 00:11:54"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-34327","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-08T13:51:06.956378Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-05-08T13:51:15.764Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"Microsoft Partner Center","vendor":"Microsoft","versions":[{"status":"affected","version":"-"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:microsoft:partner_center:*:*:*:*:*:*:*:*","versionStartIncluding":"-","vulnerable":true}],"negate":false,"operator":"OR"}]}],"datePublic":"2026-05-07T14:00:00.000Z","descriptions":[{"lang":"en-US","value":"Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network."}],"metrics":[{"cvssV3_1":{"baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-610","description":"CWE-610: Externally Controlled Reference to a Resource in Another Sphere","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-07T20:58:54.185Z","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft"},"references":[{"name":"Microsoft Partner Center Spoofing Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327"}],"tags":["exclusively-hosted-service"],"title":"Microsoft Partner Center Spoofing Vulnerability"}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2026-34327","datePublished":"2026-05-07T20:58:54.185Z","dateReserved":"2026-03-26T21:02:16.445Z","dateUpdated":"2026-05-08T13:51:15.764Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-07 22:16:34","lastModifiedDate":"2026-05-08 20:03:28","problem_types":["CWE-610","CWE-610 CWE-610: Externally Controlled Reference to a Resource in Another Sphere"],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":4.2}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:partner_center:-:*:*:*:*:*:*:*","matchCriteriaId":"A400A527-15CD-4F9D-A42D-A453ABE04769"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"34327","Ordinal":"1","Title":"Microsoft Partner Center Spoofing Vulnerability","CVE":"CVE-2026-34327","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"34327","Ordinal":"1","NoteData":"Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.","Type":"Description","Title":"Microsoft Partner Center Spoofing Vulnerability"}]}}}