CRITICAL CVSS 9.8
Published: 2025-02-26

CVE-2024-57040

tp-link tl-wr845n_firmware Security Advisory (CVE-2024-57040)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2024-57040 impacting tp-link tl-wr845n_firmware. Evaluated with CVSS Base Score of 9.8 (CRITICAL).

Original NVD Description

Source: NIST NVD
TP-Link TL-WR845N devices with firmware TL-WR845N(UN)_V4_200909 and TL-WR845N(UN)_V4_190219 was discovered to contain a hardcoded password for the root account which can be obtained by analyzing downloaded firmware or via a brute force attack through physical access to the router. NOTE: The supplier has stated that this issue was fixed in firmware versions 250401 or later.

📊 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
High (C:H)
Total information disclosure
Integrity
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product tp-link / tl-wr845n_firmware
Affected Versions 190219
Weakness Enumeration CWE-798

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-2024-57040 impacting tp-link tl-wr845n_firmware.

⚡ Nuclei Detection Template (YAML) cve-2024-57040.yaml
id: cve-2024-57040

info:
  name: tp-link tl-wr845n_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: critical
  description: |
    Automated signature & scanner for CVE-2024-57040 affecting tp-link tl-wr845n_firmware.
    Evaluation: TP-Link TL-WR845N devices with firmware TL-WR845N(UN)_V4_200909 and TL-WR845N(UN)_V4_190219 was discovered to contain a hardcoded password for the roo...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2024-57040
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2024-57040
    cwe-id: CWE-798
  tags: cve,cve-2024-57040,tp-link,tl-wr845n_firmware,critical

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "tl-wr845n_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2024-57040.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2024-57040
# Target: tp-link tl-wr845n_firmware | CVSS: 9.8 (CRITICAL)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2024-57040 (tp-link tl-wr845n_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 tl-wr845n_firmware scope (190219).")
        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-2024-57040.sh
# Recommended Remediation & Patching Commands for CVE-2024-57040
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install tl-wr845n_firmware 2>/dev/null || \
sudo dnf upgrade tl-wr845n_firmware 2>/dev/null || \
sudo yum update tl-wr845n_firmware

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i tl-wr845n_firmware 2>/dev/null || rpm -qa | grep -i tl-wr845n_firmware

# 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
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Distributions
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❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2024-57040 in tp-link tl-wr845n_firmware?

Review vendor-specific security notices and update tp-link tl-wr845n_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-2024-57040?

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-2024-57040?

CVE-2024-57040 is classified with a CVSS 3.1 Base Score of 9.8 (CRITICAL). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
9.8
CRITICAL SEVERITY
CVE ID CVE-2024-57040
Weakness CWE-798
Vendor tp-link
Product tl-wr845n_firmware
Published 2025-02-26
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H