8.8
High
CVE-2025-11715 Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143
Description
Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 144 | earliest → < 144 | 144 |
| Firefox 140.4 | earliest → < 140.4 | 140.4 |
| Firefox ESR 140.4 | earliest → < 140.4 | 140.4 |
| Thunderbird 144 | earliest → < 144 | 144 |
| Thunderbird 140.4 | earliest → < 140.4 | 140.4 |
References
- Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
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