๐Ÿ›ก๏ธ CVE-2026-8947
๐ŸŸ  CVSS 7.3 โ€” High โœ… No Known Exploit CWE-416 NVD
7.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Details

Severity HIGH
CVSS Score 7.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE CWE-416
Public Exploit โœ… No
Source NVD
Published 2026-05-19
Updated 2026-06-02
Modified 2026-05-19
Fix URL N/A

Affected Packages

Software From version Fixed in
firefox 140.0 140.11.0
thunderbird โ€” 140.11

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