UNKNOWN CVSS 7.2
Published: 2007-10-30

CVE-2007-1321

qemu qemu Security Advisory (CVE-2007-1321)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2007-1321?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2007-1321 impacting qemu qemu. Evaluated with CVSS Base Score of 7.2 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier was inadvertently used by some sources to cover multiple issues that were labeled "NE2000 network driver and the socket code," but separate identifiers have been created for the individual vulnerabilities since there are sometimes different fixes; see CVE-2007-5729 and CVE-2007-5730.

📊 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 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-2007-1321 impacting qemu qemu.

⚡ Nuclei Detection Template (YAML) cve-2007-1321.yaml
id: cve-2007-1321

info:
  name: qemu qemu - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2007-1321 affecting qemu qemu.
    Evaluation: Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2007-1321
  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-2007-1321
    cwe-id: NVD-CWE-Other
  tags: cve,cve-2007-1321,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-2007-1321.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2007-1321
# 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-2007-1321 (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-2007-1321.sh
# Recommended Remediation & Patching Commands for CVE-2007-1321
# 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-2007-1321 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-2007-1321?

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-2007-1321?

CVE-2007-1321 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-2007-1321
Weakness NVD-CWE-Other
Vendor qemu
Product qemu
Published 2007-10-30
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C