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High severity7.5NVD Advisory· Published Apr 21, 2026· Updated Apr 22, 2026

CVE-2026-6781

CVE-2026-6781

Description

Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Affected products

2

Mozilla Corporation/Thunderbird
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Range: <150.0
Mozilla Corporation/Firefox
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
Range: <150.0

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

3

www.mozilla.org/security/advisories/mfsa2026-30/nvdVendor Advisory
www.mozilla.org/security/advisories/mfsa2026-33/nvdVendor Advisory
bugzilla.mozilla.org/show_bug.cginvdPermissions Required

News mentions

0

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