VDB
ANCHORE-2026-4720
ANCHORE-2026-4720
PUBLISHED
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | 148, 140.8 |
| Mozilla | Thunderbird | 148, 140.8 |
Timeline
- Mar 24, 2026 CVE Published
- Mar 25, 2026 CVE Updated
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2004652%2C2019372%2C2021922%2C2022567%2C2022733 url
- https://www.mozilla.org/security/advisories/mfsa2026-20/ url
- https://www.mozilla.org/security/advisories/mfsa2026-22/ url
- https://www.mozilla.org/security/advisories/mfsa2026-23/ url
- https://www.mozilla.org/security/advisories/mfsa2026-24/ url