CVE-2021-42324

Name: CVE-2021-42324
Creator: NVD / NIST
Published: 2022-04-05T02:15:06.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2021-42324 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. 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. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.61%

44.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Dcnglobal	S4600-10p-Si Firmware	>= r0241.0370, < r0241.0470

References

https://exatel.pl/cve-2021-42324-metacharacter-injection-w-przelacznikach-dcn-s4600-10p-si/Exploit, Third Party Advisory
https://www.dcneurope.eu/products/switches/s4600-10p-siBroken Link
https://exatel.pl/cve-2021-42324-metacharacter-injection-w-przelacznikach-dcn-s4600-10p-si/Exploit, Third Party Advisory
https://www.dcneurope.eu/products/switches/s4600-10p-siBroken Link

Timeline

Published: Apr 5, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42324?

How severe is CVE-2021-42324?

CVE-2021-42324 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42324?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42324?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST