8.1
High
CVE-2026-12328 Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and…
Description
Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 152 | earliest → < 152 | 152 |
| Firefox 140.12 | earliest → < 140.12 | 140.12 |
| Firefox 115.37 | earliest → < 115.37 | 115.37 |
| Thunderbird 152 | earliest → < 152 | 152 |
| Thunderbird 140.12 | earliest → < 140.12 | 140.12 |
| Red Hat Enterprise Linux AppStream (v. 10) | Versions not published | |
| Red Hat Enterprise Linux AppStream (v. 8) | Versions not published | |
| Red Hat Enterprise Linux AppStream (v. 9) | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published |
Show the 26 other branches Hide the 26 other branches
References
- High Severity memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152 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
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified