HIGH CVSS 7.5
Published: 2026-01-06

CVE-2020-36922

sony bravia_signage Security Advisory (CVE-2020-36922)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-36922 impacting sony bravia_signage. Evaluated with CVSS Base Score of 7.5 (HIGH).

Original NVD Description

Source: NIST NVD
Sony BRAVIA Digital Signage 1.7.8 contains an information disclosure vulnerability that allows unauthenticated attackers to access sensitive system details through API endpoints. Attackers can retrieve network interface information, server configurations, and system metadata by sending requests to the exposed system API.

📊 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
None (PR:N)
Unauthenticated execution
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
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product sony / bravia_signage
Affected Versions *
Weakness Enumeration CWE-497

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-2020-36922 impacting sony bravia_signage.

⚡ Nuclei Detection Template (YAML) cve-2020-36922.yaml
id: cve-2020-36922

info:
  name: sony bravia_signage - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2020-36922 affecting sony bravia_signage.
    Evaluation: Sony BRAVIA Digital Signage 1.7.8 contains an information disclosure vulnerability that allows unauthenticated attackers to access sensitive system de...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-36922
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2020-36922
    cwe-id: CWE-497
  tags: cve,cve-2020-36922,sony,bravia_signage,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "bravia_signage"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-36922.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-36922
# Target: sony bravia_signage | CVSS: 7.5 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-36922 (sony bravia_signage)...")
    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 sony bravia_signage 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-2020-36922.sh
# Recommended Remediation & Patching Commands for CVE-2020-36922
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install bravia_signage 2>/dev/null || \
sudo dnf upgrade bravia_signage 2>/dev/null || \
sudo yum update bravia_signage

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

# 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-2020-36922 in sony bravia_signage?

Review vendor-specific security notices and update sony bravia_signage 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-2020-36922?

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-2020-36922?

CVE-2020-36922 is classified with a CVSS 3.1 Base Score of 7.5 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.5
HIGH SEVERITY
CVE ID CVE-2020-36922
Weakness CWE-497
Vendor sony
Product bravia_signage
Published 2026-01-06
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N