{"id":"CVE-2026-75166","title":"Insecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password","summary":"Insecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password. By leveraging the tcpdump -z option, an authenticated att…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-269","CWE-276"],"published":"2026-09-04","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:20:34.103","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75166","references":[{"url":"https://en.mbs-solutions.de/mbs","label":"cve@mitre.org"},{"url":"https://en.mbs-solutions.de/xserie","label":"cve@mitre.org"},{"url":"https://github.com/SilviaMun/vulnerability-research/tree/main/CVE-2026-75166","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-09T19:49:43.867291Z"},"epss":0.00494,"epssPercentile":0.41342,"ingestedAt":"2026-09-09T16:14:05.518Z","slug":"CVE-2026-75166","body":"## Overview\n\nInsecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password. By leveraging the tcpdump -z option, an authenticated attacker can achieve arbitrary command execution.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":24911,"id":"CVE-2026-75166","ts":1788985312767,"field":"cvss","old":null,"new":"8.8"},{"seq":24910,"id":"CVE-2026-75166","ts":1788985312767,"field":"severity","old":"none","new":"high"}]}