🔐 CVE Alert

CVE-2026-6778

MEDIUM 5.3

Invalid pointer in the Audio/Video: Playback component

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
15th

Invalid pointer in the Audio/Video: Playback 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=2022746 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-30/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-33/

Credits

chanhokim