VDB
DEBIAN-CVE-2026-0879
DEBIAN-CVE-2026-0879
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Sandbox escape due to incorrect boundary conditions in the Graphics 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 v3.1
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 | *, *, * |
| Debian:13 | firefox-esr | 140.6.0, 140.7.0, 140.7.0 |
| Debian:14 | firefox-esr | 140.5.0, 140.5.0, 140.5.0 |
| Debian:14 | thunderbird | 1:137.0-1, 1:135.0-1, 1:130.0~b3-1 |
| Debian:12 | firefox-esr | 115.3.1, 115.4.0, 115.4.0 |
| Debian:12 | thunderbird | *, 0, 1:102.11.0-1 |
| Debian:11 | thunderbird | 0, 1:115.10.1-1~deb10u1, 1:115.10.1-1 |
| Debian:13 | thunderbird | *, *, * |
Exploit Intelligence
- DLA-4442-1.json (github-poc)
- 2026.xml (github-poc)
- 2026.xml (github-poc)
Timeline
- Jan 13, 2026 CVE Published
- Apr 28, 2026 CVE Updated