CVE-2026-8389

HighCVSS 8.8/10Last modified Oct 26, 2026

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119CWE-686CWE-843CWE-733

Affected software

VendorProductVersions
MozillaFirefox—
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 6—
Red HatRed Hat Enterprise Linux 7—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 9—

References

Timeline

Published
May 12, 2026
Last modified
Oct 26, 2026
NVD status
Modified

Related CVEs from 2026

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CVE-2026-8389: High severity, CVSS 8.8 | Vulnix