CVE-2025-20139

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-dos-tC6m9GZ8	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:enterprise_chat_and_email:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-04-02 17:15

Updated : 2025-08-06 20:03

NVD link : CVE-2025-20139

Mitre link : CVE-2025-20139

CVE.ORG link : CVE-2025-20139

JSON object : View

Products Affected

cisco

enterprise_chat_and_email

CWE

CWE-185

Incorrect Regular Expression

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