VDB
DEBIAN-CVE-2026-2761
DEBIAN-CVE-2026-2761
PUBLISHED
CVSS 10 CRITICAL
Sandbox escape in the Graphics: WebRender 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
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | firefox-esr | *, 91.9.1, 91.9.1 |
| Debian:13 | thunderbird | 1:140.4.0esr-1~deb13u1, 140.5.0, 140.5.0 |
| Debian:14 | firefox-esr | 140.4.0esr-1~deb13u1, 140.4.0esr-1~deb12u1, 140.4.0esr-1~deb11u1 |
| Debian:11 | thunderbird | *, *, * |
| Debian:14 | thunderbird | 140.0.1, 140.1.0, 140.1.1 |
| Debian:13 | firefox-esr | 140.3.1esr-1~deb13u1, 140.3.1esr-1~deb12u1, 140.3.1esr-1~deb11u1 |
| Debian:12 | firefox-esr | 140.8.0, 0, 102.11.0esr-1 |
| Debian:12 | thunderbird | 1:115.3.1-1, 1:115.3.0-1~deb12u1, 1:115.3.0-1 |
Timeline
- Feb 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated