HIGH

CVE-2025-27110

CVSS v3

7.5

HIGH

EPSS Score

0.5 %

exploit probability, as of 2026-10-18

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

modsecurityBitnamifrom 3.0.13 · fixed in 3.0.14
modsecurity2Bitnamifrom 3.0.13 · no fixed version listed

Vendor advisories

CVE-2025-27110 Red Hat Product Security
mod_security: Libmodsecurity3 has possible bypass of encoded HTML entities

Full record on NVD

Description

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.

Technical details

Published: 2025-02-25

Frequently asked questions

What is CVE-2025-27110?

Is CVE-2025-27110 actively exploited?

Active exploitation of CVE-2025-27110 has not been confirmed. Its EPSS score was 0.5% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-27110?

CVE-2025-27110 has a CVSS v3 base score of 7.5 (HIGH severity).

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