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CVE-2021-27275

This vulnerability allows remote attackers to disclose sensitive information and delete arbitrary...

8.3 High

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
Low
Availability
High

Exploit likelihood

74.1%Up 73.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 8.3

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.

Record
CVE-2021-27275
CVSS 3.0
8.3 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Weakness
CWE-22
Updated
2026-11-02
EUVDEUVD-2021-14040 8.3

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.

Record
EUVD-2021-14040
CVSS 3.0
8.3 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-4gvg-m5r5-42mj No score

This vulnerability allows remote attackers to disclose sensitive information and delete arbitrary...

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.

Record
GHSA-4gvg-m5r5-42mj
Weakness
CWE-22
Updated
2026-11-02
NVD 8.3

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.

Record
CVE-2021-27275
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
CVSS 3.0
8.3 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
CVSS 2.0
6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness
CWE-22
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-27275 is a high vulnerability (CVSS 8.3) in Netgear Prosafe Network Management System, published March 29, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 74.1%, the 99th percentile. No source names a fixed version.

References

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