Vulnerability record · CVE-2021-33601 · published 28 September 2021

CVE-2021-33601: F-secure internet gatekeeper vulnerability

F Secure · Internet Gatekeeper

A vulnerability was discovered in the web user interface of F-Secure Internet Gatekeeper. An authenticated user can modify settings through the web user interface in a way that could lead to an arbitrary code execution on the F-Secure Internet Gatekeeper server.

8.8 CVSS 3.1 High EPSS 0.94% · top 40.6%

8.8CVSS 3.1 base score, v2 6.5

0.94%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Internet Gatekeeper F Secure

References

Link	Tags
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame	Vendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33601	Vendor Advisory
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame	Vendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33601	Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-33601), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.