Cyber Resilience

CVE-2021-3149

HighRCE

Published: 22 February 2021

Published
22 February 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0245 85.5th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3149 is a high-severity OS Command Injection (CWE-78) vulnerability in Netshieldcorp Nano 25 Firmware. Its CVSS base score is 7.2 (High).

Operationally, ranked in the top 14.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

On Netshield NANO 25 10.2.18 devices, /usr/local/webmin/System/manual_ping.cgi allows OS command injection (after authentication by the attacker) because the system C library function is used unsafely.

CWE(s)
CWE-78

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

netshieldcorp
nano 25 firmware
10.2.18

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References