CVE-2018-3985

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An exploitable double free vulnerability exists in the mdnscap binary of the CUJO Smart Firewall. When parsing mDNS packets, a memory space is freed twice if an invalid query name is encountered, leading to arbitrary code execution in the context of the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

No affected versions have been published.

Timeline

Published
Mar 21, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-3985: Critical severity, CVSS 9.8 | Vulnix