CVE-2018-4003 is a critical heap overflow vulnerability in the mdnscap binary of the CUJO Smart Firewall (firmware 7003). This flaw allows an unauthenticated attacker to achieve arbitrary code execution by sending a specially crafted mDNS message due to incorrect handling of string lengths in mDNS resource records. With a CVSS score of 9.8, this vulnerability is highly severe, requiring no user interaction or authentication and leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
7003CPE matchmatch criteria | cpe:2.3:a:getcujo:smart_firewall:7003:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.