VULNERABILITY INTELLIGENCE

CVE-2026-8391

CVSS score5.3 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-05-12
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-20
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-475

Primary references