VDB
DEBIAN-CVE-2025-47947
DEBIAN-CVE-2025-47947
PUBLISHED
CVSS 7.5 HIGH
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is `application/json`, and there is at least one rule which does a `sanitiseMatchedBytes` action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | modsecurity-apache | 0, 0 |
| Debian:12 | modsecurity-apache | 2.9.7-1, 0, 0 |
| Debian:11 | modsecurity-apache | 2.9.3-3, 2.9.3-3, 0 |
| Debian:13 | modsecurity-apache | 0, 0 |
Timeline
- May 21, 2025 CVE Published
- Apr 28, 2026 CVE Updated