9.8
Critical
CVE-2026-0892 Memory safety bugs present in Firefox 146 and Thunderbird 146
Description
Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 147 and Thunderbird 147.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 147 | earliest → < 147 | 147 |
| Thunderbird 147 | earliest → < 147 | 147 |
References
- Memory safety bugs fixed in Firefox 147 and Thunderbird 147 bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
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