VDB
CISA-2025-14333
CISA-2025-14333
PUBLISHED
CVSS 8.1 HIGH
Reported by mozilla · Published December 9, 2025
Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
Risk Scores
CVSS 3.1
8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 |
| Mozilla | Thunderbird | unspecified, *, unspecified |
| Mozilla | Firefox | unspecified, unspecified |
Timeline
- Dec 9, 2025 CVE Published
- Feb 26, 2026 CVE Updated