How severe is CVE-2021-42324?

CVE-2021-42324 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over physical access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-42324 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42324?

CVE-2021-42324 affects Dcnglobal S4600-10p-si Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42324?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-42324 published?

CVE-2021-42324 was published on 2022-04-05 and last updated on 2026-06-17.

CVE-2021-42324

CVE-2021-42324 is a high-severity vulnerability in Dcnglobal S4600-10p-si Firmware with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 7.2
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Dcnglobal S4600-10p-si Firmware
Published: 2022-04-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-42324?: 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.
How severe is CVE-2021-42324?: CVE-2021-42324 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over physical access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-42324 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42324?: CVE-2021-42324 affects Dcnglobal S4600-10p-si Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42324?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-42324 published?: CVE-2021-42324 was published on 2022-04-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dcnglobal:s4600-10p-si_firmware:*:*:*:*:*:*:*:*

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