VDB
DEBIAN-CVE-2026-6746
DEBIAN-CVE-2026-6746
PUBLISHED
CVSS 7.5 HIGH
Use-after-free in the DOM: Core & HTML 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:11 | firefox-esr | 102.14.0, 91.9.1, 91.9.1 |
| Debian:14 | thunderbird | 1:140.9.0esr-1~deb12u1, 1:140.9.0esr-1~deb11u1, 1:140.9.0esr-1 |
| Debian:11 | thunderbird | 1:91.0~b1-1, 1:91.0~b5-1, 1:91.1.0-1 |
| Debian:14 | firefox-esr | *, 128.14.0esr-1, 128.14.0esr-1~deb11u1 |
| Debian:12 | firefox-esr | 140.9.1, 102.11.0esr-1, 102.12.0esr-1 |
| Debian:12 | thunderbird | *, 115.3.1-1, 115.3.1-1 |
| Debian:13 | thunderbird | 1:140.5.0esr-1~deb12u1, 140.7.0, 140.7.0 |
| Debian:13 | firefox-esr | 140.4.0, 140.4.0, 140.4.0 |
Exploit Intelligence
- mfsa2026-30.yml (github-poc)
- mfsa2026-34.yml (github-poc)
- 2026-04-29_417_firefox-esr.yaml (github-poc)
- 2026.xml (github-poc)
- blog-045.ts (github-poc)
Timeline
- Apr 21, 2026 CVE Published
- Apr 28, 2026 CVE Updated