VDB
CISA-2026-2786
CISA-2026-2786
PUBLISHED
CVSS 8.8 HIGH
Reported by mozilla · Published February 24, 2026
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Risk Scores
CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified |
| Mozilla | Firefox ESR | unspecified |
| Mozilla | Thunderbird | unspecified |
| Mozilla | Thunderbird | unspecified |
| Mozilla | Firefox ESR | unspecified, unspecified |
| Mozilla | Thunderbird | unspecified, unspecified, unspecified |
| Mozilla | Firefox | unspecified, unspecified |
Timeline
- Feb 24, 2026 CVE Published
- Mar 6, 2026 CVE Updated