| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 84.0 | 84.0 |
| firefox esr | < 78.6.0 | 78.6.0 |
| thunderbird | < 78.6.0 | 78.6.0 |
Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free