HarborGuard / CVE
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CRITICALCVE-2026-8401Published Modified CNA mozilla

CVE-2026-8401: Sandbox escape in the Profile Backup component

Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Metrics

CVSS v3.1
9.8
Severity
CRITICAL
Fixed in
115.36
Affected Products
2

Fix available

115.36140.11150.0.3
Affected packages
  • Mozilla / Firefox
    Fixed in 115.36, 140.11, 150.0.3
  • Mozilla / Thunderbird
    Fixed in 140.11
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References