VDB
DEBIAN-CVE-2026-6763
DEBIAN-CVE-2026-6763
PUBLISHED
CVSS 6.5 MEDIUM
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | thunderbird | 0, 140.9.1, 140.9.1 |
| Debian:12 | thunderbird | 1:128.3.2esr-1, 1:128.4.0esr-1, 1:128.4.0esr-1~deb11u1 |
| Debian:11 | firefox-esr | 115.9.1esr-1~deb11u1, 0, 102.1.0esr-2 |
| Debian:12 | firefox-esr | 128.3.0, 115.14.0esr-1~deb11u1, 115.14.0esr-1 |
| Debian:14 | firefox-esr | *, *, * |
| Debian:13 | firefox-esr | 140.3.0esr-1~deb13u1, 140.3.0esr-2, 140.3.1esr-1 |
| Debian:14 | thunderbird | 140.7.1, 140.7.0, 140.7.0 |
| Debian:11 | thunderbird | *, 1:115.8.0-1~deb11u1, 1:115.8.0-1~deb12u1 |
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