HIGH CVSS 7.8
Published: 2025-08-21

CVE-2025-38743

dell emc_idrac_service_module Security Advisory (CVE-2025-38743)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-38743 impacting dell emc_idrac_service_module. Evaluated with CVSS Base Score of 7.8 (HIGH).

Original NVD Description

Source: NIST NVD
Dell iDRAC Service Module (iSM), versions prior to 6.0.3.0, contains a Buffer Access with Incorrect Length Value vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Code execution and Elevation of privileges.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
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 dell / emc_idrac_service_module
Affected Versions *
Weakness Enumeration CWE-805

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-2025-38743 impacting dell emc_idrac_service_module.

⚡ Nuclei Detection Template (YAML) cve-2025-38743.yaml
id: cve-2025-38743

info:
  name: dell emc_idrac_service_module - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2025-38743 affecting dell emc_idrac_service_module.
    Evaluation: Dell iDRAC Service Module (iSM), versions prior to 6.0.3.0, contains a Buffer Access with Incorrect Length Value vulnerability. A low privileged attac...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-38743
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 7.8
    cve-id: CVE-2025-38743
    cwe-id: CWE-805
  tags: cve,cve-2025-38743,dell,emc_idrac_service_module,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "emc_idrac_service_module"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-38743.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-38743
# Target: dell emc_idrac_service_module | CVSS: 7.8 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-38743 (dell emc_idrac_service_module)...")
    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 dell emc_idrac_service_module 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-2025-38743.sh
# Recommended Remediation & Patching Commands for CVE-2025-38743
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install emc_idrac_service_module 2>/dev/null || \
sudo dnf upgrade emc_idrac_service_module 2>/dev/null || \
sudo yum update emc_idrac_service_module

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

# 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-2025-38743 in dell emc_idrac_service_module?

Review vendor-specific security notices and update dell emc_idrac_service_module 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-2025-38743?

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-2025-38743?

CVE-2025-38743 is classified with a CVSS 3.1 Base Score of 7.8 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.8
HIGH SEVERITY
CVE ID CVE-2025-38743
Weakness CWE-805
Vendor dell
Product emc_idrac_service_module
Published 2025-08-21
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H