🔐 CVE Alert

CVE-2026-6775

MEDIUM 5.3

Incorrect boundary conditions in the WebRTC component

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
13th

Incorrect boundary conditions in the WebRTC 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
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Affected Versions

Mozilla / Firefox
All versions affected
Mozilla / Thunderbird
All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2021768 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-30/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-33/

Credits

Nan Wang