9.8
Critical
CVE-2024-7521 Incomplete WebAssembly exception handing could have led to a use-after-free
Description
Incomplete WebAssembly exception handing could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 129 | earliest → < 129 | 129 |
| Firefox ESR 128.1 | earliest → < 128.1 | 128.1 |
| Thunderbird 115.14 | earliest → < 115.14 | 115.14 |
| firefox_esr 128.1 | earliest → < 128.1 | 128.1 |
| firefox_esr 115.14 | earliest → < 115.14 | 115.14 |
References
- bugzilla.mozilla.org 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
Other CVEs of Firefox
The 2221 CVEs of Firefox →
CVE-2026-120572
Incorrect boundary conditions in the Layout: Block and Inline component
8.8
High
CVE-2026-118027
Frame poisoning in the Layout component
9.1
Critical
CVE-2026-118026
Invalid pointer in the JavaScript: GC component
8.8
High
CVE-2026-118024
Use-after-free in the Graphics: Text component
8.8
High