MEDIUM CVSS 4.4
Published: 2025-07-10

CVE-2025-6390

broadcom brocade_sannav Security Advisory (CVE-2025-6390)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-6390 impacting broadcom brocade_sannav. Evaluated with CVSS Base Score of 4.4 (MEDIUM).

Original NVD Description

Source: NIST NVD
Brocade SANnav before SANnav 2.4.0a logs passwords and pbe keys in the Brocade SANnav server audit logs after installation and under specific conditions. These audit logs are the local server VM’s audit logs and are not controlled by SANnav. These logs are only visible to the server admin of the host server and are not visible to the SANnav admin or any SANnav user.

📊 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
High (PR:H)
Administrative credentials 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
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product broadcom / brocade_sannav
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-2025-6390 impacting broadcom brocade_sannav.

⚡ Nuclei Detection Template (YAML) cve-2025-6390.yaml
id: cve-2025-6390

info:
  name: broadcom brocade_sannav - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-6390 affecting broadcom brocade_sannav.
    Evaluation: Brocade SANnav before SANnav 2.4.0a logs passwords and pbe keys in the Brocade SANnav server audit logs after installation and under specific conditio...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-6390
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 4.4
    cve-id: CVE-2025-6390
    cwe-id: CWE-497
  tags: cve,cve-2025-6390,broadcom,brocade_sannav,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "brocade_sannav"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-6390.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-6390
# Target: broadcom brocade_sannav | CVSS: 4.4 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-6390 (broadcom brocade_sannav)...")
    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 broadcom brocade_sannav 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-2025-6390.sh
# Recommended Remediation & Patching Commands for CVE-2025-6390
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install brocade_sannav 2>/dev/null || \
sudo dnf upgrade brocade_sannav 2>/dev/null || \
sudo yum update brocade_sannav

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

# 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-2025-6390 in broadcom brocade_sannav?

Review vendor-specific security notices and update broadcom brocade_sannav 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-2025-6390?

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-2025-6390?

CVE-2025-6390 is classified with a CVSS 3.1 Base Score of 4.4 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.4
MEDIUM SEVERITY
CVE ID CVE-2025-6390
Weakness CWE-497
Vendor broadcom
Product brocade_sannav
Published 2025-07-10
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N