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CVE-2026-100757

HIGH NVD
CVSS Score
8.8
Severity
HIGH
Source
NVD
Published
Sep 29, 2026
Description

Use-after-free in the Widget component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

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