Critical severity9.8NVD Advisory· Published Mar 21, 2019· Updated Jun 17, 2026
CVE-2018-4003
CVE-2018-4003
Description
An exploitable heap overflow vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. The string lengths are handled incorrectly when parsing character strings in mDNS resource records, leading to arbitrary code execution in the context of the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.
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Affected products
1- Range: 7003
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2018-0672nvdExploitThird Party Advisory
News mentions
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