CVE-2026-12317
Memory safety bug fixed in Thunderbird 152
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 16, 2026 |
| Last Updated | Jun 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for mozilla firefox
Be the first to know when new high 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
Frédéric Wang Nélar