VDB
DEBIAN-CVE-2026-0877
DEBIAN-CVE-2026-0877
PUBLISHED
CVSS 8.100000381469727 HIGH
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | firefox-esr | *, 128.14.0, 128.14.0 |
| Debian:12 | thunderbird | 1:102.11.0-1, 1:102.12.0-1, 1:102.12.0-1~deb10u1 |
| Debian:13 | thunderbird | 1:128.14.0esr-1, 0, 1:128.13.0esr-1 |
| Debian:14 | firefox-esr | 140.3.1, 140.3.1, 140.3.1 |
| Debian:13 | firefox-esr | 140.6.0, 140.7.0, 128.13.0esr-1 |
| Debian:12 | firefox-esr | 128.14.0, 128.3.0, 128.3.0 |
| Debian:11 | thunderbird | *, *, * |
| Debian:14 | thunderbird | 1:128.14.0esr-1, 1:128.13.0esr-1, 0 |
Exploit Intelligence
- DLA-4442-1.json (github-poc)
- seen_cves.json (github-poc)
- 2026.xml (github-poc)
- 2026.xml (github-poc)
Timeline
- Jan 13, 2026 CVE Published
- Apr 28, 2026 CVE Updated