MEDIUM CVSS 6.5
Published: 2026-01-07

CVE-2025-14631

tp-link archer_be400_firmware Security Advisory (CVE-2025-14631)
โ†— Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-14631 impacting tp-link archer_be400_firmware. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allowsย  an adjacent attacker to cause a denial-of-service (DoS) by triggering a device reboot. This issue affects Archer BE400: xi 1.1.0 Build 20250710 rel.14914.

๐Ÿ“Š CVSS v3.1 Metric Breakdown

Attack Vector
Adjacent (AV:A)
Requires shared subnet / local network access
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
None (C:N)
No data confidentiality impact
Integrity
None (I:N)
No system modification impact
Availability
High (A:H)
Total denial of service or shutdown

๐ŸŽฏ Affected Versions Matrix

Affected Product tp-link / archer_be400_firmware
Affected Versions *
Weakness Enumeration CWE-476

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-2025-14631 impacting tp-link archer_be400_firmware.

โšก Nuclei Detection Template (YAML) cve-2025-14631.yaml
id: cve-2025-14631

info:
  name: tp-link archer_be400_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-14631 affecting tp-link archer_be400_firmware.
    Evaluation: A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allowsย 

an adjacent attacker to cause a denial-of-service (DoS) b...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-14631
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 6.5
    cve-id: CVE-2025-14631
    cwe-id: CWE-476
  tags: cve,cve-2025-14631,tp-link,archer_be400_firmware,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "archer_be400_firmware"
        part: body
๐Ÿ PoC Exploit & Verification Probe (Python 3) poc_cve-2025-14631.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-14631
# Target: tp-link archer_be400_firmware | 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-2025-14631 (tp-link archer_be400_firmware)...")
    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 tp-link archer_be400_firmware 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)
๐Ÿ›ก๏ธ Quick Patch & Remediation Script (Bash) patch_cve-2025-14631.sh
# Recommended Remediation & Patching Commands for CVE-2025-14631
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install archer_be400_firmware 2>/dev/null || \
sudo dnf upgrade archer_be400_firmware 2>/dev/null || \
sudo yum update archer_be400_firmware

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i archer_be400_firmware 2>/dev/null || rpm -qa | grep -i archer_be400_firmware

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

๐Ÿ›ก๏ธ 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.
โš ๏ธ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

๐Ÿ”— Verified Technical References

โ“ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-14631 in tp-link archer_be400_firmware?

Review vendor-specific security notices and update tp-link archer_be400_firmware 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-2025-14631?

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-2025-14631?

CVE-2025-14631 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-2025-14631
Weakness CWE-476
Vendor tp-link
Product archer_be400_firmware
Published 2026-01-07
Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H