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#26695of 53,619
9.6Total CVSS
Vulnerabilities · 1
PT-2026-35735
9.6
2026-04-28
Mozilla · Thunderbird · CVE-2026-7321
**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 150 Thunderbird versions prior to 150 Firefox ESR versions prior to 140.10.1 **Description** A sandbox escape exists in the WebRTC: Networking component caused by incorrect boundary conditions. A sandbox is a security mechanism used to separate running programs from the rest of the system to prevent malicious code from accessing sensitive data or resources. **Recommendations** Update Firefox to version 150. Update Thunderbird to version 150. Update Firefox ESR to version 140.10.1.