HIGH CVSS 8.8
Published: 2022-12-05

CVE-2022-43553

ui edgemax_edgerouter_firmware Security Advisory (CVE-2022-43553)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-43553 impacting ui edgemax_edgerouter_firmware. Evaluated with CVSS Base Score of 8.8 (HIGH).

Original NVD Description

Source: NIST NVD
A remote code execution vulnerability in EdgeRouters (Version 2.0.9-hotfix.4 and earlier) allows a malicious actor with an operator account to run arbitrary administrator commands.This vulnerability is fixed in Version 2.0.9-hotfix.5 and 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
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 ui / edgemax_edgerouter_firmware
Affected Versions *
Weakness Enumeration CWE-250

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-2022-43553 impacting ui edgemax_edgerouter_firmware.

⚡ Nuclei Detection Template (YAML) cve-2022-43553.yaml
id: cve-2022-43553

info:
  name: ui edgemax_edgerouter_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2022-43553 affecting ui edgemax_edgerouter_firmware.
    Evaluation: A remote code execution vulnerability in EdgeRouters (Version 2.0.9-hotfix.4 and earlier) allows a malicious actor with an operator account to run arb...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-43553
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2022-43553
    cwe-id: CWE-250
  tags: cve,cve-2022-43553,ui,edgemax_edgerouter_firmwa,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "edgemax_edgerouter_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-43553.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-43553
# Target: ui edgemax_edgerouter_firmware | CVSS: 8.8 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2022-43553 (ui edgemax_edgerouter_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 ui edgemax_edgerouter_firmware 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-2022-43553.sh
# Recommended Remediation & Patching Commands for CVE-2022-43553
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install edgemax_edgerouter_firmwa 2>/dev/null || \
sudo dnf upgrade edgemax_edgerouter_firmwa 2>/dev/null || \
sudo yum update edgemax_edgerouter_firmwa

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

# 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-2022-43553 in ui edgemax_edgerouter_firmware?

Review vendor-specific security notices and update ui edgemax_edgerouter_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-2022-43553?

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-2022-43553?

CVE-2022-43553 is classified with a CVSS 3.1 Base Score of 8.8 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.8
HIGH SEVERITY
CVE ID CVE-2022-43553
Weakness CWE-250
Vendor ui
Product edgemax_edgerouter_firmware
Published 2022-12-05
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H