Is CVE-2021-27275 actively exploited?

No active exploitation of CVE-2021-27275 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-27275 be exploited remotely?

Yes. CVE-2021-27275 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-27275?

CVE-2021-27275 has a CVSS score of 8.3 (HIGH).

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HIGH

CVE-2021-27275

CWE-22Published: March 29, 2021· Updated: Jun 17, 2026

8.3

CVSS v3.1

Official Description

This vulnerability allows remote attackers to disclose sensitive information and delete arbitrary files on affected installations of NETGEAR ProSAFE Network Management System 1.6.0.26. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the ConfigFileController class. When parsing the realName parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose sensitive information or to create a denial-of-service condition on the system. Was ZDI-CAN-12125.

NVD Source

Technical Analysis

CVE-2021-27275 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 8.3.