Resource exhaustion in Apache Struts - CVE-2025-66675
Published: December 11, 2025
Vulnerability identifier: #VU119841
CSH Severity: Medium
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-2025-66675
CWE-ID: CWE-400
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 application does not properly control consumption of internal resources when handling multipart requests. A remote attacker can consume all available disk space and perform a denial of service (DoS) attack.
Affected software
Apache Struts
Library Support for Struts
Crowd Data Center
Crowd Server
Library Support for Struts
Crowd Data Center
Crowd Server
How to mitigate CVE-2025-66675
Install updates from vendor's website.
Apache Struts - addressed in versions 6.8.0, 7.1.1
Crowd Data Center - update to 7.1.3
Crowd Server - update to 7.1.3
Crowd Data Center - update to 7.1.3
Crowd Server - update to 7.1.3