VDB
DEBIAN-CVE-2026-2775
DEBIAN-CVE-2026-2775
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Mitigation bypass in the DOM: HTML Parser 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:11 | firefox-esr | 128.5.0, *, * |
| Debian:14 | firefox-esr | 140.8.0, 140.8.0, 140.7.0 |
| Debian:13 | firefox-esr | *, *, * |
| Debian:13 | thunderbird | 128.14.0, 128.14.0, 128.14.0 |
| Debian:12 | firefox-esr | 140.8.0, 0, 102.11.0esr-1 |
| Debian:11 | thunderbird | *, *, * |
| Debian:14 | thunderbird | 0, 1:128.13.0esr-1, 1:128.14.0esr-1 |
| Debian:12 | thunderbird | 102.13.1-1, 102.13.1-1, 102.13.1-1 |
Exploit Intelligence
- mfsa2026-15.yml (github-poc)
Timeline
- Feb 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated