{"id":"CVE-2021-42324","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-42324","generatedAt":"2026-10-27T19:57:41.355Z","title":"Due to improper parameter validation in the console interface, it is possible for a low-privileged authenticated attacker to escape the sandbox environment and execute system commands as root via shell metacharacters in the capture command parameters.","description":"An issue was discovered on DCN (Digital China Networks) S4600-10P-SI devices before R0241.0470. Due to improper parameter validation in the console interface, it is possible for a low-privileged authenticated attacker to escape the sandbox environment and execute system commands as root via shell metacharacters in the capture command parameters. Command output will be shown on the Serial interface of the device. Exploitation requires both credentials and physical access.","published":"2022-04-05T02:15:07.000Z","lastModified":"2026-06-17T04:09:39.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-78"],"affected":["dcnglobal/s4600-10p-si firmware"],"epss":{"score":0.00624,"percentile":0.49608,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://exatel.pl/cve-2021-42324-metacharacter-injection-w-przelacznikach-dcn-s4600-10p-si/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.dcneurope.eu/products/switches/s4600-10p-si","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"https://exatel.pl/cve-2021-42324-metacharacter-injection-w-przelacznikach-dcn-s4600-10p-si/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.dcneurope.eu/products/switches/s4600-10p-si","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-42324","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}