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Fencer Intel
high 8.3

CVE-2021-27275 in the critical feed json

This vulnerability allows remote attackers to disclose sensitive information and delete arbitrary files on affected installations of NETGEA…

published 5y ago modified 4mo ago also EUVD-2021-14040

cvss
8.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
74.1%
EPSS 74.1% chance of exploitation in 30 days, percentile 99.4%
public exploits
0
none known

Summary

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.

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Exploit prediction

74.08% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 8.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
NVD 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • NETGEAR ProSAFE Network Management System

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.