MEDIUM CVSS 5.5
Published: 2026-05-07

CVE-2026-40004

zte zxcloud_irai Security Advisory (CVE-2026-40004)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-40004 impacting zte zxcloud_irai. Evaluated with CVSS Base Score of 5.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
There exists an openssl.cnf privilege escalation vulnerability in ZTE Cloud PC client uSmartview. An attacker can execute arbitrary code locally and escalate privileges.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Physical (AV:P)
Requires physical access to target hardware
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Changed (S:C)
Impacts components beyond caller authority
Confidentiality
High (C:H)
Total information disclosure
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product zte / zxcloud_irai
Affected Versions *
Weakness Enumeration CWE-427

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2026-40004 impacting zte zxcloud_irai.

⚡ Nuclei Detection Template (YAML) cve-2026-40004.yaml
id: cve-2026-40004

info:
  name: zte zxcloud_irai - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-40004 affecting zte zxcloud_irai.
    Evaluation: There exists an openssl.cnf privilege escalation vulnerability in ZTE Cloud PC client uSmartview. An attacker can execute arbitrary code locally and e...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-40004
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
    cvss-score: 5.5
    cve-id: CVE-2026-40004
    cwe-id: CWE-427
  tags: cve,cve-2026-40004,zte,zxcloud_irai,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "zxcloud_irai"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-40004.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-40004
# Target: zte zxcloud_irai | CVSS: 5.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-40004 (zte zxcloud_irai)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against zte zxcloud_irai scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2026-40004.sh
# Recommended Remediation & Patching Commands for CVE-2026-40004
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install zxcloud_irai 2>/dev/null || \
sudo dnf upgrade zxcloud_irai 2>/dev/null || \
sudo yum update zxcloud_irai

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i zxcloud_irai 2>/dev/null || rpm -qa | grep -i zxcloud_irai

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-40004 in zte zxcloud_irai?

Review vendor-specific security notices and update zte zxcloud_irai packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2026-40004?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2026-40004?

CVE-2026-40004 is classified with a CVSS 3.1 Base Score of 5.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.5
MEDIUM SEVERITY
CVE ID CVE-2026-40004
Weakness CWE-427
Vendor zte
Product zxcloud_irai
Published 2026-05-07
Vector CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N