CVE-2026-4687 Firefox遥测组件沙箱逃逸漏洞

// Conceptual PoC for Telemetry Boundary Condition // This is a simulation based on the vulnerability description function triggerTelemetryOverflow() { // Attempt to manipulate telemetry data structures // to hit the incorrect boundary condition. try { // Hypothetical telemetry API interaction // In a real scenario, this would involve specific memory layout let maliciousPayload = new ArrayBuffer(0x1000); let view = new DataView(maliciousPayload); // Craft data designed to hit the boundary check failure for (let i = 0; i < 0x1000; i++) { view.setUint8(i, 0x41); // 'A' } // Trigger the vulnerability via the vulnerable component // Note: Actual exploitation requires precise memory address knowledge // and specific version targeting. console.log("[+] Payload prepared for Telemetry component."); // vulnerableTelemetryFunction(maliciousPayload); } catch (e) { console.log("[-] Exploit failed: " + e); } } triggerTelemetryOverflow();