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CRITICALCVE-2026-7321Published Modified CNA mozilla

CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Metrics

CVSS v3.1
9.6
Severity
CRITICAL
Fixed in
140.10.1
Affected Products
2

Fix available

140.10.1150
Affected packages
  • Mozilla / Firefox
    Fixed in 140.10.1, 150
  • Mozilla / Thunderbird
    Fixed in 140.10.1, 150
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
References