Vulnerability in Owasp-modsecurity Modsecurity

CVE-2025-48866

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vulnerability similar to GHSA-859r-vvv8-rm8r/CVE-2025-47947. The `sanitiseA…

EPSS: 0.011 (78.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-48866?
CVE-2025-48866 is a high-severity vulnerability in Owasp-modsecurity Modsecurity, classified under CWE-1050. CVSS score: 7.5/10. Published 2025-06-02.
How severe is CVE-2025-48866?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-48866 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.