CVE-2026-6750

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CVSS 3.1

8.8 high

EPSS

<1%p40

Published

Apr 21, 2026 (Apr 21, 2026)

Modified

Jul 15, 2026

Description

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Vendors: mozilla
Products: firefox, thunderbird
Weakness: CWE-269, CWE-266
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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