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Appaloosa Scout

Vulnerability · NVD

CVE-2026-8091

CRITICAL 9.8

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.

Attack vector : Network No privileges required No user interaction
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS 0.47% exploit very unlikely percentile 38.3%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Vulnerable CPE configurations (1)
Vendor Product Versions
mozilla thunderbird
All platforms (wildcard)
≥140.0 <140.10.1
View on NVD ↗ Advisory · www.mozilla.org