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Appaloosa Scout

Vulnerability · NVD

CVE-2026-0880

HIGH 8.8

Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Attack vector : Network No privileges required
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS 0.57% exploit very unlikely percentile 44.1%

Tracked apps referencing this CVE

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

Vulnerable CPE configurations (2)
Vendor Product Versions
mozilla thunderbird
All platforms (wildcard)
<140.7.0
mozilla thunderbird
All platforms (wildcard)
<147.0
View on NVD ↗ Advisory · www.mozilla.org