CVE-2026-6777
Other issue in the Networking: DNS component
CVSS Score
5.3
EPSS Score
0.1%
EPSS Percentile
19th
Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 21, 2026 |
| Last Updated | May 27, 2026 |
Stay Ahead of the Next One
Get instant alerts for mozilla firefox
Be the first to know when new medium vulnerabilities affecting mozilla firefox are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Mozilla / Firefox
All versions affected Mozilla / Thunderbird
All versions affected References
Credits
b00rito