VDB
CISA-2025-5268
CISA-2025-5268
PUBLISHED
CVSS 8.1 HIGH
Reported by mozilla · Published May 27, 2025
Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. 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 < 139, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
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 | unspecified, unspecified |
| Mozilla | Firefox ESR | *, unspecified |
| Mozilla | Thunderbird | unspecified, unspecified, unspecified |
Timeline
- May 27, 2025 CVE Published
- Feb 26, 2026 CVE Updated