MEDIUM CVSS 6.6
Published: 2025-08-14

CVE-2025-8980

tenda g1_firmware Security Advisory (CVE-2025-8980)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-8980 impacting tenda g1_firmware. Evaluated with CVSS Base Score of 6.6 (MEDIUM).

Original NVD Description

Source: NIST NVD
A vulnerability has been found in Tenda G1 16.01.7.8(3660). Affected by this issue is the function check_upload_file of the component Firmware Update Handler. The manipulation leads to insufficient verification of data authenticity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
High (PR:H)
Administrative credentials 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 tenda / g1_firmware
Affected Versions 16.01.7.8\(3660\)
Weakness Enumeration CWE-345

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-2025-8980 impacting tenda g1_firmware.

⚡ Nuclei Detection Template (YAML) cve-2025-8980.yaml
id: cve-2025-8980

info:
  name: tenda g1_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-8980 affecting tenda g1_firmware.
    Evaluation: A vulnerability has been found in Tenda G1 16.01.7.8(3660). Affected by this issue is the function check_upload_file of the component Firmware Update ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-8980
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 6.6
    cve-id: CVE-2025-8980
    cwe-id: CWE-345
  tags: cve,cve-2025-8980,tenda,g1_firmware,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "g1_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-8980.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-8980
# Target: tenda g1_firmware | CVSS: 6.6 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-8980 (tenda g1_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 tenda g1_firmware scope (16.01.7.8\(3660\)).")
        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-2025-8980.sh
# Recommended Remediation & Patching Commands for CVE-2025-8980
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install g1_firmware 2>/dev/null || \
sudo dnf upgrade g1_firmware 2>/dev/null || \
sudo yum update g1_firmware

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i g1_firmware 2>/dev/null || rpm -qa | grep -i g1_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-2025-8980 in tenda g1_firmware?

Review vendor-specific security notices and update tenda g1_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-2025-8980?

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-2025-8980?

CVE-2025-8980 is classified with a CVSS 3.1 Base Score of 6.6 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.6
MEDIUM SEVERITY
CVE ID CVE-2025-8980
Weakness CWE-345
Vendor tenda
Product g1_firmware
Published 2025-08-14
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H