UNKNOWN CVSS 9.3
Published: 2009-03-10

CVE-2009-0191

foxitsoftware foxit_reader Security Advisory (CVE-2009-0191)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2009-0191 impacting foxitsoftware foxit_reader. Evaluated with CVSS Base Score of 9.3 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Foxit Reader 2.3 before Build 3902 and 3.0 before Build 1506, including 3.0.2009.1301, does not properly handle a JBIG2 symbol dictionary segment with zero new symbols, which allows remote attackers to execute arbitrary code via a crafted PDF file that triggers a dereference of an uninitialized memory location.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries

🎯 Affected Versions Matrix

Affected Product foxitsoftware / foxit_reader
Affected Versions 2.3
Weakness Enumeration CWE-94

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-2009-0191 impacting foxitsoftware foxit_reader.

⚡ Nuclei Detection Template (YAML) cve-2009-0191.yaml
id: cve-2009-0191

info:
  name: foxitsoftware foxit_reader - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2009-0191 affecting foxitsoftware foxit_reader.
    Evaluation: Foxit Reader 2.3 before Build 3902 and 3.0 before Build 1506, including 3.0.2009.1301, does not properly handle a JBIG2 symbol dictionary segment with...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2009-0191
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:N/C:C/I:C/A:C
    cvss-score: 9.3
    cve-id: CVE-2009-0191
    cwe-id: CWE-94
  tags: cve,cve-2009-0191,foxitsoftware,foxit_reader,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "foxit_reader"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2009-0191.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2009-0191
# Target: foxitsoftware foxit_reader | CVSS: 9.3 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2009-0191 (foxitsoftware foxit_reader)...")
    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 foxitsoftware foxit_reader scope (2.3).")
        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-2009-0191.sh
# Recommended Remediation & Patching Commands for CVE-2009-0191
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install foxit_reader 2>/dev/null || \
sudo dnf upgrade foxit_reader 2>/dev/null || \
sudo yum update foxit_reader

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

# 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-2009-0191 in foxitsoftware foxit_reader?

Review vendor-specific security notices and update foxitsoftware foxit_reader 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-2009-0191?

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-2009-0191?

CVE-2009-0191 is classified with a CVSS 3.1 Base Score of 9.3 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
9.3
UNKNOWN SEVERITY
CVE ID CVE-2009-0191
Weakness CWE-94
Vendor foxitsoftware
Product foxit_reader
Published 2009-03-10
Vector AV:N/AC:M/Au:N/C:C/I:C/A:C