#VU116622 Input validation error in Zimbra Collaboration - CVE-2025-53645

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Main Vulnerability Database Vulnerabilities #VU116622

#VU116622 Input validation error in Zimbra Collaboration - CVE-2025-53645

Published: October 6, 2025


Vulnerability identifier: #VU116622
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2025-53645
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Zimbra Collaboration
Software vendor:
Synacor Inc.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper handling of excessive, comma-separated path segments in the Admin Console. A remote attacker can send specially crafted HTTP GET requests to the admin console and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links