MEDIUM CVSS 6.5
Published: 2025-05-13

CVE-2025-45746

zkteco zkbio_cvsecurity Security Advisory (CVE-2025-45746)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-45746 impacting zkteco zkbio_cvsecurity. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
In ZKT ZKBio CVSecurity 6.4.1_R an unauthenticated attacker can craft JWT token using the hardcoded secret to authenticate to the service console. NOTE: the Supplier disputes the significance of this report because the service console is typically only accessible from a local area network, and because access to the service console does not result in login access or data access in the context of the application software platform.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product zkteco / zkbio_cvsecurity
Affected Versions 6.4.1_r
Weakness Enumeration CWE-321

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-2025-45746 impacting zkteco zkbio_cvsecurity.

⚡ Nuclei Detection Template (YAML) cve-2025-45746.yaml
id: cve-2025-45746

info:
  name: zkteco zkbio_cvsecurity - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-45746 affecting zkteco zkbio_cvsecurity.
    Evaluation: In ZKT ZKBio CVSecurity 6.4.1_R an unauthenticated attacker can craft JWT token using the hardcoded secret to authenticate to the service console. NOT...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-45746
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
    cvss-score: 6.5
    cve-id: CVE-2025-45746
    cwe-id: CWE-321
  tags: cve,cve-2025-45746,zkteco,zkbio_cvsecurity,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "zkbio_cvsecurity"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-45746.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-45746
# Target: zkteco zkbio_cvsecurity | CVSS: 6.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-45746 (zkteco zkbio_cvsecurity)...")
    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 zkteco zkbio_cvsecurity scope (6.4.1_r).")
        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-2025-45746.sh
# Recommended Remediation & Patching Commands for CVE-2025-45746
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install zkbio_cvsecurity 2>/dev/null || \
sudo dnf upgrade zkbio_cvsecurity 2>/dev/null || \
sudo yum update zkbio_cvsecurity

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

# 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-2025-45746 in zkteco zkbio_cvsecurity?

Review vendor-specific security notices and update zkteco zkbio_cvsecurity 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-2025-45746?

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-2025-45746?

CVE-2025-45746 is classified with a CVSS 3.1 Base Score of 6.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.5
MEDIUM SEVERITY
CVE ID CVE-2025-45746
Weakness CWE-321
Vendor zkteco
Product zkbio_cvsecurity
Published 2025-05-13
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N