Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.
CVE ID: CVE-2025-27110
CVSS Base Severity: HIGH
CVSS Base Score: 7.9
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
Vendor: owasp-modsecurity
Product: ModSecurity
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 8.07% (scored less or equal to compared to others)
EPSS Date: 2025-03-26 (when was this score calculated)