CVE-2026-8391

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CVSS 3.1

5.3 medium

EPSS

<1%p22

Published

May 12, 2026 (May 12, 2026)

Modified

Jul 15, 2026

Description

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Vendors: mozilla
Products: firefox
Weakness: CWE-20, CWE-79, CWE-119, CWE-475
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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