High severity7.5NVD Advisory· Published Oct 31, 2019· Updated Jun 17, 2026
CVE-2018-4002
CVE-2018-4002
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.
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Affected products
2- CUJO/Smart Firewalldescription
- Range: firmware 7003
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2018-0671nvdExploitThird Party Advisory
News mentions
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