MEDIUM CVSS 4.9
Published: 2025-09-09

CVE-2025-55146

ivanti connect_secure Security Advisory (CVE-2025-55146)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-55146 impacting ivanti connect_secure. Evaluated with CVSS Base Score of 4.9 (MEDIUM).

Original NVD Description

Source: NIST NVD
An unchecked return value in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows a remote authenticated attacker with admin privileges to trigger a denial of service.

📊 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
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
None (C:N)
No data confidentiality impact
Integrity
None (I:N)
No system modification impact
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product ivanti / connect_secure
Affected Versions *
Weakness Enumeration CWE-252

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-2025-55146 impacting ivanti connect_secure.

⚡ Nuclei Detection Template (YAML) cve-2025-55146.yaml
id: cve-2025-55146

info:
  name: ivanti connect_secure - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-55146 affecting ivanti connect_secure.
    Evaluation: An unchecked return value in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-55146
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 4.9
    cve-id: CVE-2025-55146
    cwe-id: CWE-252
  tags: cve,cve-2025-55146,ivanti,connect_secure,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "connect_secure"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-55146.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-55146
# Target: ivanti connect_secure | CVSS: 4.9 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-55146 (ivanti connect_secure)...")
    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 ivanti connect_secure 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-2025-55146.sh
# Recommended Remediation & Patching Commands for CVE-2025-55146
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install connect_secure 2>/dev/null || \
sudo dnf upgrade connect_secure 2>/dev/null || \
sudo yum update connect_secure

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

# 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
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Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-55146 in ivanti connect_secure?

Review vendor-specific security notices and update ivanti connect_secure 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-2025-55146?

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-2025-55146?

CVE-2025-55146 is classified with a CVSS 3.1 Base Score of 4.9 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.9
MEDIUM SEVERITY
CVE ID CVE-2025-55146
Weakness CWE-252
Vendor ivanti
Product connect_secure
Published 2025-09-09
Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H