UNKNOWN CVSS 7.2
Published: 2007-10-30

CVE-2007-5729

qemu qemu Security Advisory (CVE-2007-5729)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2007-5729?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2007-5729 impacting qemu qemu. Evaluated with CVSS Base Score of 7.2 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required

🎯 Affected Versions Matrix

Affected Product qemu / qemu
Affected Versions 0.8.2
Weakness Enumeration CWE-119

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-2007-5729 impacting qemu qemu.

⚡ Nuclei Detection Template (YAML) cve-2007-5729.yaml
id: cve-2007-5729

info:
  name: qemu qemu - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2007-5729 affecting qemu qemu.
    Evaluation: The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_T...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2007-5729
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:L/Au:N/C:C/I:C/A:C
    cvss-score: 7.2
    cve-id: CVE-2007-5729
    cwe-id: CWE-119
  tags: cve,cve-2007-5729,qemu,qemu,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "qemu"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2007-5729.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2007-5729
# Target: qemu qemu | CVSS: 7.2 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2007-5729 (qemu qemu)...")
    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 qemu qemu scope (0.8.2).")
        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-2007-5729.sh
# Recommended Remediation & Patching Commands for CVE-2007-5729
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install qemu 2>/dev/null || \
sudo dnf upgrade qemu 2>/dev/null || \
sudo yum update qemu

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

# 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-2007-5729 in qemu qemu?

Review vendor-specific security notices and update qemu qemu 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-2007-5729?

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-2007-5729?

CVE-2007-5729 is classified with a CVSS 3.1 Base Score of 7.2 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.2
UNKNOWN SEVERITY
CVE ID CVE-2007-5729
Weakness CWE-119
Vendor qemu
Product qemu
Published 2007-10-30
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C