CVE-2025-27110

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
GitHub_MCNA
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
VendorProductVersion
trustwavemodsecurity
3.0.13
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
modsecurity
bullseye
3.0.4-2
not-affected
bookworm
3.0.9-1+deb12u1
not-affected
sid
3.0.14-1
fixed
trixie
3.0.14-1
fixed
Common Weakness Enumeration
References
https://github.com/owasp-modsecurity/ModSecurity/issues/3340
https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-42w7-rmv5-4x2j