{"id":"CVE-2026-20230","revision":"b52ffbd44c4e4961ba0696eaf2a35942","records":[{"revision":"b52ffbd44c4e4961ba0696eaf2a35942","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-20230","aliases":[],"title":"Cisco Unified Communications Manager Server-Side Request Forgery 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 server-side request forgery (SSRF) attacks through 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 write files to the underlying operating system that could be used later to elevate to root.\r\nNote: Cisco has assigned this security advisory a Security Impact Rating (SIR) of Critical rather than High as the score indicates. The reason is that exploitation of this vulnerability could result in an attacker elevating privileges to root.\r\nNote: To exploit this vulnerability, the WebDialer service must be enabled. WebDialer is disabled by default.","state":0,"publishedAt":"2026-06-03T16:09:45.961+00:00","modifiedAt":"2026-10-07T18:09:00.866+00:00","affected":[{"ecosystem":"Vendor product","name":"Cisco Unified Communications Manager","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Cisco\",\n                    \"product\": \"Cisco Unified Communications Manager\",\n                    \"versions\": [\n                        {\n                            \"version\": \"14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"14SU1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"14SU2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"14SU3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15SU1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"14SU4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"14SU4a\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15SU1a\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15SU2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13010-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13011-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13012-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13013-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13014-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13015-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13016-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15.0.1.13017-1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15SU3a\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"14SU5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15SU4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"15SU4a\",\n                            \"status\": \"affected\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unknown\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","score":8.6,"severity":"HIGH"}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-ssrf-cXPnHcW"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-20230","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-20230","identifiers":["CVE-2026-20230"]},"retained":false,"historicalAffected":[]}],"coverage":[]}