MEDIUM CVSS 6.5
Published: 2022-08-30

CVE-2022-25635

realtek bluetooth_mesh_software_development_kit Security Advisory (CVE-2022-25635)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-25635 impacting realtek bluetooth_mesh_software_development_kit. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
Realtek Linux/Android Bluetooth Mesh SDK has a buffer overflow vulnerability due to insufficient validation for broadcast network packet length. An unauthenticated attacker in the adjacent network can exploit this vulnerability to disrupt service.

📊 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

🎯 Affected Versions Matrix

Affected Product realtek / bluetooth_mesh_software_development_kit
Affected Versions *
Weakness Enumeration CWE-120

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-2022-25635 impacting realtek bluetooth_mesh_software_development_kit.

⚡ Nuclei Detection Template (YAML) cve-2022-25635.yaml
id: cve-2022-25635

info:
  name: realtek bluetooth_mesh_software_development_kit - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2022-25635 affecting realtek bluetooth_mesh_software_development_kit.
    Evaluation: Realtek Linux/Android Bluetooth Mesh SDK has a buffer overflow vulnerability due to insufficient validation for broadcast network packet length. An un...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-25635
  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-2022-25635
    cwe-id: CWE-120
  tags: cve,cve-2022-25635,realtek,bluetooth_mesh_software_d,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "bluetooth_mesh_software_development_kit"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-25635.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-25635
# Target: realtek bluetooth_mesh_software_development_kit | 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-2022-25635 (realtek bluetooth_mesh_software_development_kit)...")
    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 realtek bluetooth_mesh_software_development_kit 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)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2022-25635.sh
# Recommended Remediation & Patching Commands for CVE-2022-25635
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install bluetooth_mesh_software_d 2>/dev/null || \
sudo dnf upgrade bluetooth_mesh_software_d 2>/dev/null || \
sudo yum update bluetooth_mesh_software_d

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

# 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
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2022-25635 in realtek bluetooth_mesh_software_development_kit?

Review vendor-specific security notices and update realtek bluetooth_mesh_software_development_kit 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-2022-25635?

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-2022-25635?

CVE-2022-25635 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-2022-25635
Weakness CWE-120
Vendor realtek
Product bluetooth_mesh_software_development_kit
Published 2022-08-30
Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H