VULNERABILITY INTELLIGENCE

CVE-2026-12321

CVSS score5.4 MEDIUM
EPSS probability0.16%
CISA KEVNot currently listed
Published2026-06-16
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Description

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-670

Primary references