{"id":"CVE-2025-20139","state":"PUBLISHED","title":"A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.\r","description":"A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper validation of user-supplied input to chat entry points. An attacker could exploit this vulnerability by sending malicious requests to a messaging chat entry point in the affected application. A successful exploit could allow the attacker to cause the application to stop responding, resulting in a DoS condition. The application may not recover on its own and may need an administrator to manually restart services to recover.","publishedAt":"2025-04-02T16:16:17.546Z","updatedAt":"2025-04-02T16:33:45.699Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Enterprise Chat and Email"],"affected":[{"vendor":"Cisco","product":"Cisco Enterprise Chat and Email","versions":[{"version":"11.5(1)","status":"affected"},{"version":"11.6(1)","status":"affected"},{"version":"11.6(1)_ES2","status":"affected"},{"version":"11.6(1)_ES3","status":"affected"},{"version":"11.6(1)_ES4","status":"affected"},{"version":"11.6(1)_ES5","status":"affected"},{"version":"11.6(1)_ES6","status":"affected"},{"version":"11.6(1)_ES10","status":"affected"},{"version":"11.6(1)_ES11","status":"affected"},{"version":"11.6(1)_ES7","status":"affected"},{"version":"11.6(1)_ES8","status":"affected"},{"version":"11.6(1)_ES9","status":"affected"},{"version":"11.6(1)_ES9a","status":"affected"},{"version":"11.6(1)_ES12","status":"affected"},{"version":"11.6(1)_ES12_ET1","status":"affected"},{"version":"12.0(1)","status":"affected"},{"version":"12.0(1)_ES1","status":"affected"},{"version":"12.0(1)_ES2","status":"affected"},{"version":"12.0(1)_ES3","status":"affected"},{"version":"12.0(1)_ES4","status":"affected"},{"version":"12.0(1)_ES5","status":"affected"},{"version":"12.0(1)_ES5a","status":"affected"},{"version":"12.0(1)_ES6","status":"affected"},{"version":"12.0(1)_ES6_ET1","status":"affected"},{"version":"12.0(1)_ES6_ET2","status":"affected"},{"version":"12.0(1)_ES6_ET3","status":"affected"},{"version":"12.0(1)_ES7","status":"affected"},{"version":"12.0(1)_ES7_ET1","status":"affected"},{"version":"12.5(1)","status":"affected"},{"version":"12.5(1)_ES1","status":"affected"},{"version":"12.5(1)_ES2","status":"affected"},{"version":"12.5(1)_ES3","status":"affected"},{"version":"12.5(1)_ES3_ET1","status":"affected"},{"version":"12.5(1)_ET1","status":"affected"},{"version":"12.5(1)_ES4","status":"affected"},{"version":"12.5(1)_ES3_ET2","status":"affected"},{"version":"12.5(1)_ES4_ET1","status":"affected"},{"version":"12.5(1)_ES5","status":"affected"},{"version":"12.5(1)_ES5_ET1","status":"affected"},{"version":"12.5(1)_ES6","status":"affected"},{"version":"12.5(1)_ES7","status":"affected"},{"version":"12.5(1)_ES8","status":"affected"},{"version":"12.5(1)_ES8_ET1","status":"affected"},{"version":"12.5(1)_ES3_ET3","status":"affected"},{"version":"12.5(1)_ES5_ET2","status":"affected"},{"version":"12.5(1)_ES6_ET1","status":"affected"},{"version":"12.5(1)_ES4_ET2","status":"affected"},{"version":"12.5(1)_ES7_ET1","status":"affected"},{"version":"12.5(1)_ES9","status":"affected"},{"version":"12.6(1)","status":"affected"},{"version":"12.6(1)_ET1","status":"affected"},{"version":"12.6(1)_ET2","status":"affected"},{"version":"12.6(1)_ES1","status":"affected"},{"version":"12.6(1)_ET3","status":"affected"},{"version":"12.6(1)_ES1_ET1","status":"affected"},{"version":"12.6(1)_ES2","status":"affected"},{"version":"12.6(1)_ES3","status":"affected"},{"version":"12.6(1)_ES4","status":"affected"},{"version":"12.6(1)_ES4_ET1","status":"affected"},{"version":"12.6(1)_ES5","status":"affected"},{"version":"12.6(1)_ES5_ET1","status":"affected"},{"version":"12.6(1)_ES5_ET2","status":"affected"},{"version":"12.6(1)_ES6","status":"affected"},{"version":"12.6(1)_ES6_ET1","status":"affected"},{"version":"12.6(1)_ES6_ET2","status":"affected"},{"version":"12.6(1)_ES7","status":"affected"},{"version":"12.6(1)_ES8","status":"affected"},{"version":"12.6(1)_ES4_ET2","status":"affected"},{"version":"12.6(1)_ES3_ET3","status":"affected"},{"version":"12.6(1)_ES2_ET5","status":"affected"},{"version":"12.6(1)_ES1_ET2","status":"affected"},{"version":"12.6(1)_ES8_ET1","status":"affected"},{"version":"12.6(1)_ES7_ET1","status":"affected"},{"version":"12.6(1)_ES6_ET3","status":"affected"},{"version":"12.6(1)_ES5_ET3","status":"affected"},{"version":"12.6(1)_ES8_ET2","status":"affected"},{"version":"12.6(1)_ES9","status":"affected"},{"version":"12.6(1)_ES9_ET1","status":"affected"},{"version":"12.6(1)_ES9_ET2","status":"affected"},{"version":"12.6(1)_ES9_ET3","status":"affected"},{"version":"12.6_ES2_ET1","status":"affected"},{"version":"12.6_ES2_ET2","status":"affected"},{"version":"12.6_ES2_ET3","status":"affected"},{"version":"12.6_ES2_ET4","status":"affected"},{"version":"12.6_ES3_ET1","status":"affected"},{"version":"12.6_ES3_ET2","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-dos-tC6m9GZ8"],"weaknesses":["CWE-185"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/20xxx/CVE-2025-20139.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-20139","state":"PUBLISHED","datePublished":"2025-04-02T16:16:17.546Z","dateUpdated":"2025-04-02T16:33:45.699Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2024-10-10T19:15:13.213Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper validation of user-supplied input to chat entry points. An attacker could exploit this vulnerability by sending malicious requests to a messaging chat entry point in the affected application. A successful exploit could allow the attacker to cause the application to stop responding, resulting in a DoS condition. The application may not recover on its own and may need an administrator to manually restart services to recover."}],"affected":[{"vendor":"Cisco","product":"Cisco Enterprise Chat and Email","versions":[{"version":"11.5(1)","status":"affected"},{"version":"11.6(1)","status":"affected"},{"version":"11.6(1)_ES2","status":"affected"},{"version":"11.6(1)_ES3","status":"affected"},{"version":"11.6(1)_ES4","status":"affected"},{"version":"11.6(1)_ES5","status":"affected"},{"version":"11.6(1)_ES6","status":"affected"},{"version":"11.6(1)_ES10","status":"affected"},{"version":"11.6(1)_ES11","status":"affected"},{"version":"11.6(1)_ES7","status":"affected"},{"version":"11.6(1)_ES8","status":"affected"},{"version":"11.6(1)_ES9","status":"affected"},{"version":"11.6(1)_ES9a","status":"affected"},{"version":"11.6(1)_ES12","status":"affected"},{"version":"11.6(1)_ES12_ET1","status":"affected"},{"version":"12.0(1)","status":"affected"},{"version":"12.0(1)_ES1","status":"affected"},{"version":"12.0(1)_ES2","status":"affected"},{"version":"12.0(1)_ES3","status":"affected"},{"version":"12.0(1)_ES4","status":"affected"},{"version":"12.0(1)_ES5","status":"affected"},{"version":"12.0(1)_ES5a","status":"affected"},{"version":"12.0(1)_ES6","status":"affected"},{"version":"12.0(1)_ES6_ET1","status":"affected"},{"version":"12.0(1)_ES6_ET2","status":"affected"},{"version":"12.0(1)_ES6_ET3","status":"affected"},{"version":"12.0(1)_ES7","status":"affected"},{"version":"12.0(1)_ES7_ET1","status":"affected"},{"version":"12.5(1)","status":"affected"},{"version":"12.5(1)_ES1","status":"affected"},{"version":"12.5(1)_ES2","status":"affected"},{"version":"12.5(1)_ES3","status":"affected"},{"version":"12.5(1)_ES3_ET1","status":"affected"},{"version":"12.5(1)_ET1","status":"affected"},{"version":"12.5(1)_ES4","status":"affected"},{"version":"12.5(1)_ES3_ET2","status":"affected"},{"version":"12.5(1)_ES4_ET1","status":"affected"},{"version":"12.5(1)_ES5","status":"affected"},{"version":"12.5(1)_ES5_ET1","status":"affected"},{"version":"12.5(1)_ES6","status":"affected"},{"version":"12.5(1)_ES7","status":"affected"},{"version":"12.5(1)_ES8","status":"affected"},{"version":"12.5(1)_ES8_ET1","status":"affected"},{"version":"12.5(1)_ES3_ET3","status":"affected"},{"version":"12.5(1)_ES5_ET2","status":"affected"},{"version":"12.5(1)_ES6_ET1","status":"affected"},{"version":"12.5(1)_ES4_ET2","status":"affected"},{"version":"12.5(1)_ES7_ET1","status":"affected"},{"version":"12.5(1)_ES9","status":"affected"},{"version":"12.6(1)","status":"affected"},{"version":"12.6(1)_ET1","status":"affected"},{"version":"12.6(1)_ET2","status":"affected"},{"version":"12.6(1)_ES1","status":"affected"},{"version":"12.6(1)_ET3","status":"affected"},{"version":"12.6(1)_ES1_ET1","status":"affected"},{"version":"12.6(1)_ES2","status":"affected"},{"version":"12.6(1)_ES3","status":"affected"},{"version":"12.6(1)_ES4","status":"affected"},{"version":"12.6(1)_ES4_ET1","status":"affected"},{"version":"12.6(1)_ES5","status":"affected"},{"version":"12.6(1)_ES5_ET1","status":"affected"},{"version":"12.6(1)_ES5_ET2","status":"affected"},{"version":"12.6(1)_ES6","status":"affected"},{"version":"12.6(1)_ES6_ET1","status":"affected"},{"version":"12.6(1)_ES6_ET2","status":"affected"},{"version":"12.6(1)_ES7","status":"affected"},{"version":"12.6(1)_ES8","status":"affected"},{"version":"12.6(1)_ES4_ET2","status":"affected"},{"version":"12.6(1)_ES3_ET3","status":"affected"},{"version":"12.6(1)_ES2_ET5","status":"affected"},{"version":"12.6(1)_ES1_ET2","status":"affected"},{"version":"12.6(1)_ES8_ET1","status":"affected"},{"version":"12.6(1)_ES7_ET1","status":"affected"},{"version":"12.6(1)_ES6_ET3","status":"affected"},{"version":"12.6(1)_ES5_ET3","status":"affected"},{"version":"12.6(1)_ES8_ET2","status":"affected"},{"version":"12.6(1)_ES9","status":"affected"},{"version":"12.6(1)_ES9_ET1","status":"affected"},{"version":"12.6(1)_ES9_ET2","status":"affected"},{"version":"12.6(1)_ES9_ET3","status":"affected"},{"version":"12.6_ES2_ET1","status":"affected"},{"version":"12.6_ES2_ET2","status":"affected"},{"version":"12.6_ES2_ET3","status":"affected"},{"version":"12.6_ES2_ET4","status":"affected"},{"version":"12.6_ES3_ET1","status":"affected"},{"version":"12.6_ES3_ET2","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-dos-tC6m9GZ8","name":"cisco-sa-ece-dos-tC6m9GZ8"}],"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:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-185","lang":"en","description":"Incorrect Regular Expression","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2025-04-02T16:16:17.546Z"},"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-ece-dos-tC6m9GZ8","discovery":"EXTERNAL","defects":["CSCwm08282"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-02T16:33:38.164036Z","id":"CVE-2025-20139","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-02T16:33:45.699Z"}}]}}}