VDB
DEBIAN-CVE-2025-0239
DEBIAN-CVE-2025-0239
PUBLISHED
CVSS 4 MEDIUM
When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
Risk Scores
CVSS 3.1
4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | firefox-esr | 91.9.1esr-1~deb11u1, *, * |
| Debian:14 | thunderbird | 0, 0 |
| Debian:13 | firefox-esr | 0, 0 |
| Debian:13 | thunderbird | 0, 0 |
| Debian:14 | firefox-esr | 0, 0 |
| Debian:11 | thunderbird | 1:128.5.2esr-1, 1:78.12.0-1, 1:78.13.0-1 |
| Debian:12 | firefox-esr | *, 0, 102.11.0esr-1 |
| Debian:12 | thunderbird | 1:115.13.0-1, 1:115.12.0-1~deb12u1, 1:115.12.0-1~deb11u1 |
Exploit Intelligence
- seen_cves.json (github-poc)
Timeline
- Jan 7, 2025 CVE Published
- Apr 28, 2026 CVE Updated