CVE-2026-8391

MediumCVSS 5.3/10Last 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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-20CWE-79CWE-119CWE-475

Affected software

No affected versions have been published.

Timeline

Published
May 12, 2026
Last modified
Jul 15, 2026
NVD status
Modified

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CVE-2026-8391: Medium severity, CVSS 5.3 | Vulnix