VDB
DEBIAN-CVE-2026-2763
DEBIAN-CVE-2026-2763
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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 | thunderbird | 1:102.11.0-1, 1:115.1.0-1, 1:115.0~b6-1 |
| Debian:13 | thunderbird | 1:140.3.0esr-1~deb12u1, 0, 1:128.13.0esr-1 |
| Debian:14 | thunderbird | 1:129.0~b6-1, 1:130.0~b3-1, 1:140.8.0esr-1~deb13u1 |
| Debian:13 | firefox-esr | 128.14.0esr-1, 0, 128.13.0esr-1 |
| Debian:12 | firefox-esr | 140.8.0esr-1~deb11u1, 128.7.0esr-1~deb11u1, 128.7.0esr-1~deb12u1 |
| Debian:14 | firefox-esr | 128.13.0esr-1, 128.14.0esr-1, 128.14.0esr-1~deb11u1 |
Timeline
- Feb 24, 2026 CVE Published
- Oct 1, 2026 CVE Updated