VDB
DEBIAN-CVE-2026-6761
DEBIAN-CVE-2026-6761
PUBLISHED
CVSS 8.800000190734863 HIGH
Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Risk Scores
CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | firefox-esr | 140.9.1, 0, 128.13.0esr-1 |
| Debian:11 | thunderbird | 91.12.0-1, 1:78.14.0-1~deb11u1, 1:78.14.0-1~deb9u1 |
| Debian:12 | thunderbird | 1:128.11.0esr-1, 1:128.11.0esr-1~deb11u1, 1:128.11.0esr-1~deb12u1 |
| Debian:11 | firefox-esr | 128.11.0esr-1~deb11u1, 0, 102.1.0esr-1 |
| Debian:13 | firefox-esr | 0, 128.13.0esr-1, 128.14.0esr-1 |
| Debian:12 | firefox-esr | 115.15.0, 115.15.0, 115.2.0 |
| Debian:14 | thunderbird | 140.3.0, 140.3.1, 140.4.0 |
| Debian:13 | thunderbird | 1:140.10.0esr-1~deb11u1, 1:140.1.0esr-1, 1:140.0.1esr-1 |
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