CVE-2026-100763

critical

Description

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

References

https://www.mozilla.org/security/advisories/mfsa2026-97/

https://www.mozilla.org/security/advisories/mfsa2026-101/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88915

https://bugzilla.mozilla.org/show_bug.cgi?id=2059929

Details

Source: Mitre, NVD

Published: 2026-09-29

Updated: 2026-10-13

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Severity: Critical

EPSS

EPSS: 0.00375