VDB
DEBIAN-CVE-2026-6754
DEBIAN-CVE-2026-6754
PUBLISHED
CVSS 7.5 HIGH
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | firefox-esr | 140.3.1esr-2, 140.9.1esr-1~deb13u1, 140.9.1esr-1~deb12u1 |
| Debian:12 | firefox-esr | 128.8.0esr-1, 128.7.0esr-1~deb12u1, 128.7.0esr-1~deb11u1 |
| Debian:14 | firefox-esr | 128.13.0esr-1, 0, 128.14.0esr-1 |
| Debian:14 | thunderbird | 1:140.3.0esr-1, 1:140.9.1esr-1~deb13u1, 1:140.9.1esr-1~deb12u1 |
| Debian:12 | thunderbird | 1:115.7.0-1, 1:115.6.0-1, 1:115.5.2-1 |
| Debian:13 | thunderbird | 1:140.9.1esr-1~deb13u1, 1:140.9.1esr-1~deb12u1, 1:140.9.1esr-1~deb11u1 |
Timeline
- Apr 21, 2026 CVE Published
- Oct 26, 2026 CVE Updated