{"id":"CVE-2026-76487","state":"PUBLISHED","title":"Cisco Unified Communications Manager Improper Access Control Vulnerability","description":"A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct access control bypass attacks on an affected device.\r\n\r\nThis vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to access parts of the network that are beyond the scope of their intended access.","publishedAt":"2026-10-21T16:16:54.579Z","updatedAt":"2026-10-22T13:37:53.516Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Unified Communications Manager"],"affected":[{"vendor":"Cisco","product":"Cisco Unified Communications Manager","defaultStatus":"unknown","versions":[{"version":"14","status":"affected"},{"version":"14SU1","status":"affected"},{"version":"14SU2","status":"affected"},{"version":"14SU3","status":"affected"},{"version":"15","status":"affected"},{"version":"15SU1","status":"affected"},{"version":"14SU4","status":"affected"},{"version":"14SU4a","status":"affected"},{"version":"15SU1a","status":"affected"},{"version":"15SU2","status":"affected"},{"version":"15.0.1.13010-1","status":"affected"},{"version":"15.0.1.13011-1","status":"affected"},{"version":"15.0.1.13012-1","status":"affected"},{"version":"15.0.1.13013-1","status":"affected"},{"version":"15.0.1.13014-1","status":"affected"},{"version":"15.0.1.13015-1","status":"affected"},{"version":"15.0.1.13016-1","status":"affected"},{"version":"15.0.1.13017-1","status":"affected"},{"version":"15SU3a","status":"affected"},{"version":"14SU5","status":"affected"},{"version":"15SU4","status":"affected"},{"version":"15SU4a","status":"affected"},{"version":"14SU6","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2"],"weaknesses":["CWE-749"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/76xxx/CVE-2026-76487.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76487","state":"PUBLISHED","datePublished":"2026-10-21T16:16:54.579Z","dateUpdated":"2026-10-22T13:37:53.516Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2026-08-19T12:02:03.639Z"},"containers":{"cna":{"title":"Cisco Unified Communications Manager Improper Access Control Vulnerability","descriptions":[{"lang":"en","value":"A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct access control bypass attacks on an affected device.\r\n\r\nThis vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to access parts of the network that are beyond the scope of their intended access."}],"affected":[{"vendor":"Cisco","product":"Cisco Unified Communications Manager","defaultStatus":"unknown","versions":[{"version":"14","status":"affected"},{"version":"14SU1","status":"affected"},{"version":"14SU2","status":"affected"},{"version":"14SU3","status":"affected"},{"version":"15","status":"affected"},{"version":"15SU1","status":"affected"},{"version":"14SU4","status":"affected"},{"version":"14SU4a","status":"affected"},{"version":"15SU1a","status":"affected"},{"version":"15SU2","status":"affected"},{"version":"15.0.1.13010-1","status":"affected"},{"version":"15.0.1.13011-1","status":"affected"},{"version":"15.0.1.13012-1","status":"affected"},{"version":"15.0.1.13013-1","status":"affected"},{"version":"15.0.1.13014-1","status":"affected"},{"version":"15.0.1.13015-1","status":"affected"},{"version":"15.0.1.13016-1","status":"affected"},{"version":"15.0.1.13017-1","status":"affected"},{"version":"15SU3a","status":"affected"},{"version":"14SU5","status":"affected"},{"version":"15SU4","status":"affected"},{"version":"15SU4a","status":"affected"},{"version":"14SU6","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2","name":"cisco-sa-cucm-access-PW9e8Jt2"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-749","lang":"en","description":"Exposed Dangerous Method or Function","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2026-10-21T16:16:54.579Z"},"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-cucm-access-PW9e8Jt2","discovery":"EXTERNAL","defects":["CSCwv00936"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-76487","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-22T13:21:24.610490Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-22T13:37:53.516Z"}}]}}}