Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 22/06/2023. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 45.5.1< 50.0.2 | 45.5.150.0.2 |
| thunderbird | < 45.5.1 | 45.5.1 |
A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free