| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 79.0 | 79.0 |
| firefox esr | < 78.1 | 78.1 |
| thunderbird | < 78.1 | 78.1 |
JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free