CVE-2026-8091

Critical

Open

TLP:CLEAR

Incorrect boundary conditions in the Audio/Video: Playback component

NVD CVE.org

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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.

Details

CVSS Score: 9.8
EPSS Score ⓘ: 0.47%

38.3th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: May 7, 2026
Last Modified: Aug 11, 2026

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