HIGH CVSS 8.0
Published: 2026-02-03

CVE-2025-62673

tp-link archer_ax53_firmware Security Advisory (CVE-2025-62673)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-62673 impacting tp-link archer_ax53_firmware. Evaluated with CVSS Base Score of 8.0 (HIGH).

Original NVD Description

Source: NIST NVD
Heap-based Buffer Overflow vulnerability in Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a maliciously formed field. This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120 and Archer AX12 v1.0: up to 1.5.1 Build 20260721.

📊 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
Low (PR:L)
Standard user access required
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 / archer_ax53_firmware
Affected Versions 1.0
Weakness Enumeration CWE-122

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-2025-62673 impacting tp-link archer_ax53_firmware.

⚡ Nuclei Detection Template (YAML) cve-2025-62673.yaml
id: cve-2025-62673

info:
  name: tp-link archer_ax53_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2025-62673 affecting tp-link archer_ax53_firmware.
    Evaluation: Heap-based Buffer Overflow vulnerability in Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent attackers to cause a segmentation fault...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-62673
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.0
    cve-id: CVE-2025-62673
    cwe-id: CWE-122
  tags: cve,cve-2025-62673,tp-link,archer_ax53_firmware,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "archer_ax53_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-62673.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-62673
# Target: tp-link archer_ax53_firmware | CVSS: 8.0 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-62673 (tp-link archer_ax53_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_ax53_firmware scope (1.0).")
        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-2025-62673.sh
# Recommended Remediation & Patching Commands for CVE-2025-62673
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install archer_ax53_firmware 2>/dev/null || \
sudo dnf upgrade archer_ax53_firmware 2>/dev/null || \
sudo yum update archer_ax53_firmware

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i archer_ax53_firmware 2>/dev/null || rpm -qa | grep -i archer_ax53_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.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-62673 in tp-link archer_ax53_firmware?

Review vendor-specific security notices and update tp-link archer_ax53_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-2025-62673?

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-2025-62673?

CVE-2025-62673 is classified with a CVSS 3.1 Base Score of 8.0 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.0
HIGH SEVERITY
CVE ID CVE-2025-62673
Weakness CWE-122
Vendor tp-link
Product archer_ax53_firmware
Published 2026-02-03
Vector CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H