CVE-2025-20139

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. 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.

Reserved 2024-10-10 | Published 2025-04-02 | Updated 2025-04-02 | Assigner cisco

Problem types

Incorrect Regular Expression

Product status

11.5(1)
affected

11.6(1)
affected

11.6(1)_ES2
affected

11.6(1)_ES3
affected

11.6(1)_ES4
affected

11.6(1)_ES5
affected

11.6(1)_ES6
affected

11.6(1)_ES10
affected

11.6(1)_ES11
affected

11.6(1)_ES7
affected

11.6(1)_ES8
affected

11.6(1)_ES9
affected

11.6(1)_ES9a
affected

11.6(1)_ES12
affected

11.6(1)_ES12_ET1
affected

12.0(1)
affected

12.0(1)_ES1
affected

12.0(1)_ES2
affected

12.0(1)_ES3
affected

12.0(1)_ES4
affected

12.0(1)_ES5
affected

12.0(1)_ES5a
affected

12.0(1)_ES6
affected

12.0(1)_ES6_ET1
affected

12.0(1)_ES6_ET2
affected

12.0(1)_ES6_ET3
affected

12.0(1)_ES7
affected

12.0(1)_ES7_ET1
affected

12.5(1)
affected

12.5(1)_ES1
affected

12.5(1)_ES2
affected

12.5(1)_ES3
affected

12.5(1)_ES3_ET1
affected

12.5(1)_ET1
affected

12.5(1)_ES4
affected

12.5(1)_ES3_ET2
affected

12.5(1)_ES4_ET1
affected

12.5(1)_ES5
affected

12.5(1)_ES5_ET1
affected

12.5(1)_ES6
affected

12.5(1)_ES7
affected

12.5(1)_ES8
affected

12.5(1)_ES8_ET1
affected

12.5(1)_ES3_ET3
affected

12.5(1)_ES5_ET2
affected

12.5(1)_ES6_ET1
affected

12.5(1)_ES4_ET2
affected

12.5(1)_ES7_ET1
affected

12.5(1)_ES9
affected

12.6(1)
affected

12.6(1)_ET1
affected

12.6(1)_ET2
affected

12.6(1)_ES1
affected

12.6(1)_ET3
affected

12.6(1)_ES1_ET1
affected

12.6(1)_ES2
affected

12.6(1)_ES3
affected

12.6(1)_ES4
affected

12.6(1)_ES4_ET1
affected

12.6(1)_ES5
affected

12.6(1)_ES5_ET1
affected

12.6(1)_ES5_ET2
affected

12.6(1)_ES6
affected

12.6(1)_ES6_ET1
affected

12.6(1)_ES6_ET2
affected

12.6(1)_ES7
affected

12.6(1)_ES8
affected

12.6(1)_ES4_ET2
affected

12.6(1)_ES3_ET3
affected

12.6(1)_ES2_ET5
affected

12.6(1)_ES1_ET2
affected

12.6(1)_ES8_ET1
affected

12.6(1)_ES7_ET1
affected

12.6(1)_ES6_ET3
affected

12.6(1)_ES5_ET3
affected

12.6(1)_ES8_ET2
affected

12.6(1)_ES9
affected

12.6(1)_ES9_ET1
affected

12.6(1)_ES9_ET2
affected

12.6(1)_ES9_ET3
affected

12.6_ES2_ET1
affected

12.6_ES2_ET2
affected

12.6_ES2_ET3
affected

12.6_ES2_ET4
affected

12.6_ES3_ET1
affected

12.6_ES3_ET2
affected

References

sec.cloudapps.cisco.com/...dvisory/cisco-sa-ece-dos-tC6m9GZ8 (cisco-sa-ece-dos-tC6m9GZ8)

cve.org (CVE-2025-20139)

nvd.nist.gov (CVE-2025-20139)

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