CVE-2025-20139

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductCisco Enterprise Chat And Email
PublishedApr 2, 2025
First seenApr 2, 2025
Weakness typeCWE-185CWE-185

How to fix

Update
  • cisco enterprise_chat_and_email12.6\(1\)es10 or later

Affected products

ProductAffected versionsFixed in
cisco enterprise_chat_and_emailv < 12.6\(1\)es1012.6\(1\)es10

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