CVE-2018-4002
7.5 · HIGHOverview
CVE-2018-4002 is a high-severity vulnerability affecting cujo smart_firewall_firmware. It was published on October 31, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An exploitable denial-of-service vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. When parsing labels in mDNS packets, the firewall unsafely handles label compression pointers, leading to an uncontrolled recursion that eventually exhausts the stack, crashing the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.
Remediation
Check the references section for vendor advisories and patches from cujo. Update smart_firewall_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2018-4002?
CVE-2018-4002 is a high-severity vulnerability affecting cujo smart_firewall_firmware. It was published on October 31, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2018-4002?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-4002?
Check the references section for vendor advisories and patches from cujo. Update smart_firewall_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-4002?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-4002 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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