🔐 CVE Alert

CVE-2026-100763

CRITICAL 9.1

Incorrect boundary conditions in the Graphics: WebGPU component

CVSS Score
9.1
EPSS Score
0.1%
EPSS Percentile
4th

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

Vendor mozilla
Product thunderbird
Ecosystems
Industries
Technology
Published Sep 29, 2026
Last Updated Oct 1, 2026
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Affected Versions

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

References

NVD ↗ CVE.org ↗ EPSS Data ↗
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2059929 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-101/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-97/

Credits

Shaheen Fazim