HarborGuard / CVE
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CRITICALCVE-2026-4715Published Modified CNA mozilla

CVE-2026-4715: Uninitialized memory in the Graphics: Canvas2D component

Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Metrics

CVSS v3.1
9.1
Severity
CRITICAL
Fixed in
140.9
Affected Products
2

Fix available

140.9149
Affected packages
  • Mozilla / Firefox
    Fixed in 140.9, 149
  • Mozilla / Thunderbird
    Fixed in 140.9, 149
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References