๐Ÿ” CVE Alert

CVE-2026-7321

CRITICAL 9.6

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component

CVSS Score
9.6
EPSS Score
0.0%
EPSS Percentile
0th

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox ESR 140.10.1.

Vendor mozilla
Product firefox
Ecosystems
Industries
Technology
Published Apr 28, 2026
Last Updated Apr 28, 2026
Stay Ahead of the Next One

Get instant alerts for mozilla firefox

Be the first to know when new critical vulnerabilities affecting mozilla firefox are published โ€” delivered to Slack, Telegram or Discord.

Get Free Alerts โ†’ Free ยท No credit card ยท 60 sec setup

Affected Versions

Mozilla / Firefox
All versions affected

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2029461 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-36/

Credits

Bugmon