CVE-2021-42324 json
An issue was discovered on DCN (Digital China Networks) S4600-10P-SI devices before R0241.0470.
published 2022-04-05 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29299
- cvss
- 7.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- dcnglobal s4600-10p-si_firmware r0241.0470
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- exatel.pl https://exatel.pl/cve-2021-42324-metacharacter-injection-w-przelacznikach-dcn-s4600-10p-si/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.4 | CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
exatel.pl
/cve-2021-42324-metacharacter-injection-w-przelacznikach-dcn-s4600-10p-si/
exploit, third-party-advisory
-
dcneurope.eu
/products/switches/s4600-10p-si
broken-link
Sources
- CVE List CVE-2021-42324
- NVD CVE-2021-42324
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