MEDIUM

CVE-2025-54571

CVSS v3

6.1

MEDIUM

EPSS Score

0.3 %

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

modsecurityBitnamiall versions · fixed in 2.9.12and 1 other package

Vendor advisories

CVE-2025-54571 Red Hat Product Security9 known affected
mod_security: ModSecurity Content-Type Override Vulnerability
mod_security-mlogc as a component of Red Hat Enterprise Linux 7 · mod_security.src as a component of Red Hat Enterprise Linux 7 · mod_security as a component of Red Hat Enterprise Linux 8

Full record on NVD

Description

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.11 and below, an attacker can override the HTTP response’s Content-Type, which could lead to several issues depending on the HTTP scenario. For example, we have demonstrated the potential for XSS and arbitrary script source code disclosure in the latest version of mod_security2. This issue is fixed in version 2.9.12.

Technical details

Published: 2025-08-06

Frequently asked questions

What is CVE-2025-54571?

Is CVE-2025-54571 actively exploited?

Active exploitation of CVE-2025-54571 has not been confirmed. Its EPSS score was 0.3% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-54571?

CVE-2025-54571 has a CVSS v3 base score of 6.1 (MEDIUM severity).

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