VDB
DEBIAN-CVE-2025-49630
DEBIAN-CVE-2025-49630
PUBLISHED
CVSS 7.5 HIGH
In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on".
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 | apache2 | 0, 0 |
| Debian:13 | apache2 | 0, 0 |
| Debian:12 | apache2 | *, 0, 2.4.57-2 |
| Debian:11 | apache2 | 2.4.57-2, 2.4.64-1, 2.4.62-3 |
Timeline
- Jul 10, 2025 CVE Published
- Apr 28, 2026 CVE Updated