CVE-2026-5733

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-26)

CWEs

CWE-119, CWE-787

Published

2026-04-07

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• mozilla:firefox

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2022554
• https://www.mozilla.org/security/advisories/mfsa2026-25/
• https://www.mozilla.org/security/advisories/mfsa2026-28/
• https://access.redhat.com/security/cve/CVE-2026-5733
• https://bugzilla.redhat.com/show_bug.cgi?id=2455902

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