CVE-2026-8091

—

CVSS 3.1

9.8 critical

EPSS

<1%p39

Published

May 7, 2026 (May 7, 2026)

Modified

Aug 11, 2026

Description

Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.

Vendors: mozilla
Products: firefox, thunderbird
Weakness: CWE-754, CWE-805
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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