VDB
DEBIAN-CVE-2026-0884
DEBIAN-CVE-2026-0884
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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 | 1:128.13.0esr-1~deb11u1, 1:102.12.0-1~deb10u1, 1:102.12.0-1~deb11u1 |
| Debian:13 | firefox-esr | 0, 140.3.1esr-1~deb12u1, 140.3.1esr-1 |
| Debian:12 | firefox-esr | *, *, 0 |
| Debian:13 | thunderbird | 0, 1:128.13.0esr-1, 1:128.14.0esr-1 |
| Debian:14 | thunderbird | 0, 1:128.13.0esr-1, 1:128.14.0esr-1~deb11u1 |
| Debian:11 | thunderbird | 91.1.1-1, 91.10.0-1, 91.10.0-1 |
| Debian:14 | firefox-esr | 140.5.0, 140.6.0, 140.6.0 |
| Debian:11 | firefox-esr | 128.6.0, 128.6.0, 128.6.0 |
Exploit Intelligence
- DLA-4442-1.json (github-poc)
- 2026.xml (github-poc)
- 2026.xml (github-poc)
- poc.js (github-poc)
Timeline
- Jan 13, 2026 CVE Published
- Apr 28, 2026 CVE Updated