UNKNOWN CVSS 6.9
Published: 2007-08-22

CVE-2007-3873

trend_micro antispyware Security Advisory (CVE-2007-3873)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2007-3873?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2007-3873 impacting trend_micro antispyware. Evaluated with CVSS Base Score of 6.9 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Stack-based buffer overflow in vstlib32.dll 1.2.0.1012 in the SSAPI Engine 5.0.0.1066 through 5.2.0.1012 in Trend Micro AntiSpyware 3.5 and PC-Cillin Internet Security 2007 15.0 through 15.3, when the Venus Spy Trap (VST) feature is enabled, allows local users to cause a denial of service (service crash) or execute arbitrary code via a file with a long pathname, which triggers the overflow during a ReadDirectoryChangesW callback notification.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions

🎯 Affected Versions Matrix

Affected Product trend_micro / antispyware
Affected Versions 3.5
Weakness Enumeration NVD-CWE-Other

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-2007-3873 impacting trend_micro antispyware.

⚡ Nuclei Detection Template (YAML) cve-2007-3873.yaml
id: cve-2007-3873

info:
  name: trend_micro antispyware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2007-3873 affecting trend_micro antispyware.
    Evaluation: Stack-based buffer overflow in vstlib32.dll 1.2.0.1012 in the SSAPI Engine 5.0.0.1066 through 5.2.0.1012 in Trend Micro AntiSpyware 3.5 and PC-Cillin ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2007-3873
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:M/Au:N/C:C/I:C/A:C
    cvss-score: 6.9
    cve-id: CVE-2007-3873
    cwe-id: NVD-CWE-Other
  tags: cve,cve-2007-3873,trend_micro,antispyware,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "antispyware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2007-3873.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2007-3873
# Target: trend_micro antispyware | CVSS: 6.9 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2007-3873 (trend_micro antispyware)...")
    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 trend_micro antispyware scope (3.5).")
        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-2007-3873.sh
# Recommended Remediation & Patching Commands for CVE-2007-3873
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install antispyware 2>/dev/null || \
sudo dnf upgrade antispyware 2>/dev/null || \
sudo yum update antispyware

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

# 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-2007-3873 in trend_micro antispyware?

Review vendor-specific security notices and update trend_micro antispyware 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-2007-3873?

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-2007-3873?

CVE-2007-3873 is classified with a CVSS 3.1 Base Score of 6.9 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.9
UNKNOWN SEVERITY
CVE ID CVE-2007-3873
Weakness NVD-CWE-Other
Vendor trend_micro
Product antispyware
Published 2007-08-22
Vector AV:L/AC:M/Au:N/C:C/I:C/A:C