#VU109658 Resource exhaustion in ModSecurity - CVE-2025-47947
Published: May 22, 2025
Vulnerability identifier: #VU109658
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-2025-47947
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ModSecurity
ModSecurity
Software vendor:
Trustwave
Trustwave
Description
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 application/json payloads. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Successful exploitation of the vulnerability requires that at least one rule which does a sanitiseMatchedBytes action.
Remediation
Install updates from vendor's website.