This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System…

published 2021-03-29 5y ago modified 2026-06-17 4mo ago also EUVD-2021-14039

cvss: 9.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 8.5%; EPSS 8.5% chance of exploitation in 30 days, percentile 95%
public exploits: 0; none known

This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System 1.6.0.26. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MFileUploadController class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-12124.

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Exploit prediction

8.45% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

NETGEAR ProSAFE Network Management System

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

kb.netgear.com /000062688/Security-Advisory-for-Pre-Authentication-Command-Injection-on-NMS300-PSV-2020-0560
vendor-advisory
zerodayinitiative.com /advisories/ZDI-21-357/
third-party-advisory, vdb-entry

Sources

CVE List CVE-2021-27274
NVD CVE-2021-27274

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