VDB
DEBIAN-CVE-2026-4705
DEBIAN-CVE-2026-4705
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | firefox-esr | 128.6.0esr-1~deb11u3, 128.6.0esr-1~deb11u2, 128.6.0esr-1~deb11u1 |
| Debian:13 | thunderbird | 135.0-1, 132.0, 130.0 |
| Debian:14 | firefox-esr | 128.13.0, 0, * |
| Debian:14 | thunderbird | 136.0-1, 135.0-1, 132.0 |
| Debian:12 | thunderbird | 0, 1:102.11.0-1, 1:102.12.0-1~deb10u1 |
| Debian:13 | firefox-esr | 140.3.1, 140.3.1, 140.4.0 |
| Debian:11 | firefox-esr | 128.6.0, 128.6.0, 128.7.0 |
| Debian:11 | thunderbird | 1:102.15.0-1~deb12u1, 1:102.15.0-1~deb10u1, 1:102.14.0-1~deb12u1 |
Exploit Intelligence
- mfsa2026-23.yml (github-poc)
- 2026.xml (github-poc)
Timeline
- Mar 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated