Incorrect Regular Expression in Enterprise Chat and Email - CVE-2025-20139
Published: April 3, 2025
Vulnerability identifier: #VU106918
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-20139
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing regular expressions in chat messaging features. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Affected software
Enterprise Chat and Email
How to mitigate CVE-2025-20139
Install updates from vendor's website.
Enterprise Chat and Email - update to 12.6 ES 10