{"id":"CVE-2025-20156","aliases":["EUVD-2025-2156","GHSA-8m34-ghfg-xxc2"],"status":"published","title":"Cisco Meeting Management Client-Server Privilege Escalation Vulnerability","description":"A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device.\r\n\r\nThis vulnerability exists because proper authorization is not enforced upon\u0026nbsp;REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.","severity":{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01185,"percentile":0.68048,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-274","CWE-276"],"published":"2025-01-22T16:21:20Z","modified":"2026-06-17T08:40:48Z","products":[{"vendor":"cisco","product":"cisco meeting management"},{"vendor":"cisco","product":"meeting_management"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cmm-privesc-uy2Vf8pc","tags":["Vendor Advisory"]},{"url":"https://blog.clamav.net/2025/01/clamav-142-and-108-security-patch.html","tags":["Not Applicable"]},{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA","tags":["Not Applicable"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-20156"},{"url":"https://github.com/advisories/GHSA-8m34-ghfg-xxc2"}],"sources":{"cve":[{"id":"CVE-2025-20156","title":"Cisco Meeting Management Client-Server Privilege Escalation Vulnerability","description":"A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device.\r\n\r\nThis vulnerability exists because proper authorization is not enforced upon\u0026nbsp;REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.","status":"published","published":"2025-01-22T16:21:20.333Z","modified":"2026-02-26T19:08:58.432Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-274"],"updated_at":"2026-11-02T14:32:25.5658Z"}],"euvd":[{"id":"EUVD-2025-2156","description":"A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device.\r\n\r\nThis vulnerability exists because proper authorization is not enforced upon\u0026nbsp;REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.","status":"published","published":"2025-01-22T16:21:20Z","modified":"2026-02-26T19:08:58Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:48:15.753271Z"}],"ghsa":[{"id":"GHSA-8m34-ghfg-xxc2","title":"A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated...","description":"A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device.\n\nThis vulnerability exists because proper authorization is not enforced upon\u0026nbsp;REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.","status":"published","published":"2025-01-22T18:31:55Z","modified":"2025-01-22T18:32:07Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-274","CWE-276"],"updated_at":"2026-11-02T14:59:38.594977Z"}],"nvd":[{"id":"CVE-2025-20156","description":"A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device.\r\n\r\nThis vulnerability exists because proper authorization is not enforced upon\u0026nbsp;REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.","status":"published","published":"2025-01-22T17:15:12.8Z","modified":"2026-06-17T08:40:48.63Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-274"],"updated_at":"2026-11-02T14:10:49.483601Z"}]}}