CVE-2018-4002 is a denial-of-service vulnerability affecting the CUJO Smart Firewall (firmware 7003). It stems from unsafe handling of label compression pointers in mDNS packet parsing, causing uncontrolled recursion and a crash of the mdnscap process. With a CVSS score of 7.5 (High), this vulnerability can be triggered by an unauthenticated attacker sending a specially crafted mDNS message, leading to a complete loss of availability. There is no evidence of active exploitation, and public exploit code (Metasploit, Nuclei, ExploitDB) is unavailable. Community discussion and media coverage are minimal, indicating low current attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
7003CPE matchmatch criteria | cpe:2.3:o:cujo:smart_firewall_firmware:7003:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.