LOW CVSS 3.7
Published: 2025-09-02

CVE-2025-9828

tenda cp6_firmware Security Advisory (CVE-2025-9828)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-9828 impacting tenda cp6_firmware. Evaluated with CVSS Base Score of 3.7 (LOW).

Original NVD Description

Source: NIST NVD
A vulnerability was determined in Tenda CP6 11.10.00.243. The affected element is the function sub_2B7D04 of the component uhttp. Executing manipulation can lead to risky cryptographic algorithm. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized.

📊 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
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
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product tenda / cp6_firmware
Affected Versions 11.10.00.243
Weakness Enumeration CWE-310

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-2025-9828 impacting tenda cp6_firmware.

⚡ Nuclei Detection Template (YAML) cve-2025-9828.yaml
id: cve-2025-9828

info:
  name: tenda cp6_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: low
  description: |
    Automated signature & scanner for CVE-2025-9828 affecting tenda cp6_firmware.
    Evaluation: A vulnerability was determined in Tenda CP6 11.10.00.243. The affected element is the function sub_2B7D04 of the component uhttp. Executing manipulati...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-9828
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
    cvss-score: 3.7
    cve-id: CVE-2025-9828
    cwe-id: CWE-310
  tags: cve,cve-2025-9828,tenda,cp6_firmware,low

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "cp6_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-9828.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-9828
# Target: tenda cp6_firmware | CVSS: 3.7 (LOW)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-9828 (tenda cp6_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 cp6_firmware scope (11.10.00.243).")
        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-2025-9828.sh
# Recommended Remediation & Patching Commands for CVE-2025-9828
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install cp6_firmware 2>/dev/null || \
sudo dnf upgrade cp6_firmware 2>/dev/null || \
sudo yum update cp6_firmware

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i cp6_firmware 2>/dev/null || rpm -qa | grep -i cp6_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

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-9828 in tenda cp6_firmware?

Review vendor-specific security notices and update tenda cp6_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-2025-9828?

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-2025-9828?

CVE-2025-9828 is classified with a CVSS 3.1 Base Score of 3.7 (LOW). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
3.7
LOW SEVERITY
CVE ID CVE-2025-9828
Weakness CWE-310
Vendor tenda
Product cp6_firmware
Published 2025-09-02
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N