| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | ≥ 116.0, < 128.8.0< 115.21.0< 136.0 | 128.8.0115.21.0136.0 |
| thunderbird | ≥ 129.0, < 136.0< 128.8 | 136.0128.8 |
On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
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