VULNERABILITY INTELLIGENCE

CVE-2026-0884

CVSS score9.8 CRITICAL
EPSS probability0.46%
CISA KEVNot currently listed
Published2026-01-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Weakness classification

  • CWE-416: Use After Free

Primary references