{"id":"CVE-2026-76487","title":"Cisco Unified Communications Manager Improper Access Control Vulnerability","summary":"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 at…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-749"],"vendor":"Cisco","product":"Cisco Unified Communications Manager","affected":["unified_communications_manager 14","unified_communications_manager 14SU1","unified_communications_manager 14SU2","unified_communications_manager 14SU3","unified_communications_manager 15","unified_communications_manager 15SU1","unified_communications_manager 14SU4","unified_communications_manager 14SU4a","unified_communications_manager 15SU1a","unified_communications_manager 15SU2","unified_communications_manager 15.0.1.13010-1","unified_communications_manager 15.0.1.13011-1","unified_communications_manager 15.0.1.13012-1","unified_communications_manager 15.0.1.13013-1","unified_communications_manager 15.0.1.13014-1","unified_communications_manager 15.0.1.13015-1","unified_communications_manager 15.0.1.13016-1","unified_communications_manager 15.0.1.13017-1","unified_communications_manager 15SU3a","unified_communications_manager 14SU5","unified_communications_manager 15SU4","unified_communications_manager 15SU4a","unified_communications_manager 14SU6"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T16:16:54.579Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-76487","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2","label":"cisco-sa-cucm-access-PW9e8Jt2"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T17:07:51.301Z","slug":"CVE-2026-76487","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `unified_communications_manager 14`\n- `unified_communications_manager 14SU1`\n- `unified_communications_manager 14SU2`\n- `unified_communications_manager 14SU3`\n- `unified_communications_manager 15`\n- `unified_communications_manager 15SU1`\n- `unified_communications_manager 14SU4`\n- `unified_communications_manager 14SU4a`\n- `unified_communications_manager 15SU1a`\n- `unified_communications_manager 15SU2`\n- `unified_communications_manager 15.0.1.13010-1`\n- `unified_communications_manager 15.0.1.13011-1`\n- `unified_communications_manager 15.0.1.13012-1`\n- `unified_communications_manager 15.0.1.13013-1`\n- `unified_communications_manager 15.0.1.13014-1`\n- `unified_communications_manager 15.0.1.13015-1`\n- `unified_communications_manager 15.0.1.13016-1`\n- `unified_communications_manager 15.0.1.13017-1`\n- `unified_communications_manager 15SU3a`\n- `unified_communications_manager 14SU5`\n- `unified_communications_manager 15SU4`\n- `unified_communications_manager 15SU4a`\n- `unified_communications_manager 14SU6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}