VDB
DEBIAN-CVE-2026-2792
DEBIAN-CVE-2026-2792
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, 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:12 | firefox-esr | 140.7.0, 140.7.0, 140.7.0 |
| Debian:13 | firefox-esr | 140.8.0, 140.8.0, 140.7.0 |
| Debian:14 | thunderbird | *, 1:140.3.0esr-1~deb13u1, 1:140.3.1esr-1 |
| Debian:11 | thunderbird | 1:115.12.0-1~deb10u1, *, * |
| Debian:14 | firefox-esr | 140.5.0esr-1~deb12u1, 140.5.0esr-1~deb13u1, 140.6.0esr-1 |
| Debian:12 | thunderbird | 115.6.0-1, 1:102.11.0-1, 1:102.12.0-1 |
| Debian:11 | firefox-esr | 115.0.2, 115.1.0, 115.10.0 |
| Debian:13 | thunderbird | 140.8.0, 140.8.0, 140.7.1 |
Exploit Intelligence
- mfsa2026-15.yml (github-poc)
Timeline
- Feb 24, 2026 CVE Published
- Apr 28, 2026 CVE Updated