VDB
DEBIAN-CVE-2026-4716
DEBIAN-CVE-2026-4716
PUBLISHED
CVSS 9.100000381469727 CRITICAL
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Risk Scores
CVSS 3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | firefox-esr | 128.13.0esr-1, 128.14.0esr-1, 128.14.0esr-1~deb11u1 |
| Debian:12 | thunderbird | 1:115.8.0-1~deb11u1, 1:115.8.1-1, 1:115.9.0-1 |
| Debian:14 | firefox-esr | 128.14.0esr-1~deb12u1, 128.14.0esr-1~deb13u1, 140.9.0 |
| Debian:13 | thunderbird | 1:140.4.0esr-1~deb11u1, 1:140.4.0esr-1, 1:140.3.0esr-1~deb13u1 |
| Debian:11 | firefox-esr | *, 102.1.0esr-1, 102.1.0esr-2 |
| Debian:11 | thunderbird | 1:115.5.0-1~deb11u1, 1:115.5.0-1, 1:115.4.1-1~deb12u1 |
| Debian:14 | thunderbird | 1:128.13.0esr-1, 1:128.14.0esr-1, 1:128.14.0esr-1~deb11u1 |
| Debian:12 | firefox-esr | 115.5.0, 115.6.0, 115.6.0 |
Exploit Intelligence
- mfsa2026-23.yml (github-poc)
- 2026.xml (github-poc)
Timeline
- Mar 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated