LOW CVSS 3.7
Published: 2025-04-17

CVE-2025-29931

siemens telecontrol_server_basic Security Advisory (CVE-2025-29931)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-29931 impacting siemens telecontrol_server_basic. Evaluated with CVSS Base Score of 3.7 (LOW).

Original NVD Description

Source: NIST NVD
A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected product does not properly validate a length field in a serialized message which it uses to determine the amount of memory to be allocated for deserialization. This could allow an unauthenticated remote attacker to cause the application to allocate exhaustive amounts of memory and subsequently create a partial denial of service condition. Successful exploitation is only possible in redundant Telecontrol Server Basic setups and only if the connection between the redundant servers has been disrupted.

📊 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
None (I:N)
No system modification impact
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product siemens / telecontrol_server_basic
Affected Versions *
Weakness Enumeration CWE-130

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-2025-29931 impacting siemens telecontrol_server_basic.

⚡ Nuclei Detection Template (YAML) cve-2025-29931.yaml
id: cve-2025-29931

info:
  name: siemens telecontrol_server_basic - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: low
  description: |
    Automated signature & scanner for CVE-2025-29931 affecting siemens telecontrol_server_basic.
    Evaluation: A vulnerability has been identified in TeleControl Server Basic (All versions &lt; V3.1.2.2). The affected product does not properly validate a length...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-29931
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    cvss-score: 3.7
    cve-id: CVE-2025-29931
    cwe-id: CWE-130
  tags: cve,cve-2025-29931,siemens,telecontrol_server_basic,low

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "telecontrol_server_basic"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-29931.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-29931
# Target: siemens telecontrol_server_basic | 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-2025-29931 (siemens telecontrol_server_basic)...")
    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 siemens telecontrol_server_basic 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-2025-29931.sh
# Recommended Remediation & Patching Commands for CVE-2025-29931
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install telecontrol_server_basic 2>/dev/null || \
sudo dnf upgrade telecontrol_server_basic 2>/dev/null || \
sudo yum update telecontrol_server_basic

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

# 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-2025-29931 in siemens telecontrol_server_basic?

Review vendor-specific security notices and update siemens telecontrol_server_basic 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-2025-29931?

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-2025-29931?

CVE-2025-29931 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-2025-29931
Weakness CWE-130
Vendor siemens
Product telecontrol_server_basic
Published 2025-04-17
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L