VDB
DEBIAN-CVE-2025-49812
DEBIAN-CVE-2025-49812
PUBLISHED
CVSS 7.400000095367432 HIGH
In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade.
Risk Scores
CVSS 3.1
7.400000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | apache2 | 0 |
| Debian:13 | apache2 | 0 |
| Debian:12 | apache2 | 2.4.57-2, 2.4.57-3, 2.4.58-1 |
Timeline
- Jul 10, 2025 CVE Published
- Sep 1, 2026 CVE Updated