VDB
DEBIAN-CVE-2026-4718
DEBIAN-CVE-2026-4718
PUBLISHED
CVSS 8.100000381469727 HIGH
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | thunderbird | 0, 1:102.12.0-1, 1:102.12.0-1~deb12u1 |
| Debian:11 | thunderbird | *, 0, 1:102.0.1-1 |
| Debian:13 | firefox-esr | 0, 128.13.0esr-1, 128.14.0esr-1 |
| Debian:11 | firefox-esr | 128.10.0esr-1, 102.1.0esr-1, 102.1.0esr-2 |
| Debian:14 | firefox-esr | 140.5.0esr-1~deb11u1, 140.5.0esr-1~deb12u1, 140.5.0esr-1~deb13u1 |
| Debian:13 | thunderbird | *, *, * |
| Debian:14 | thunderbird | *, *, * |
| Debian:12 | firefox-esr | 128.11.0esr-1~deb11u1, 128.12.0esr-1, 128.12.0esr-1~deb11u1 |
Exploit Intelligence
- mfsa2026-23.yml (github-poc)
- 2026.xml (github-poc)
Timeline
- Mar 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated