{"cve_id":"CVE-2026-20230","published":"2026-06-03T18:16:20.160000+00:00","last_modified":"2026-10-07T19:17:37.003000+00:00","vuln_status":"Analyzed","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.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","base_score":8.6,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"CHANGED","impact_c":"NONE","impact_i":"HIGH","impact_a":"NONE","cwe_ids":["CWE-918"],"in_kev":true,"kev_date_added":"2026-06-25","kev_ransomware":false,"epss_score":0.88528,"epss_percentile":0.99772,"cap_rule_version":"0.1.1","stage":"RECON","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"PRIV","caps":["INFO_DISCLOSURE","LATERAL","PRIV_GAIN","TAMPER"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-10-08T03:18:57.604631+00:00","first_seen":"2026-06-03T18:16:20.160000+00:00","kev_first_seen":"2026-06-25T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["cisco"],"products":["unified_communications_manager"],"affected":[{"vendor":"cisco","product":"unified_communications_manager","ranges":["≥ 14.0 and < 14su6","≥ 15.0 and ≤ 15su4a"]}]}