VULNERABILITY INTELLIGENCE
CVE-2026-4715
CVSS score9.1 CRITICAL
EPSS probability0.45%
CISA KEVNot currently listed
Published2026-03-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Description
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Weakness classification
- CWE-908: Use of Uninitialized Resource
Primary references
- security@mozilla.org — Permissions Required
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory
- security@mozilla.org
- security@mozilla.org