CVE-2021-33601
CVE-2021-33601 is a high-severity vulnerability in F-secure Internet Gatekeeper with a CVSS 3.x base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.6)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (56th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: F-secure Internet Gatekeeper
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2021-33601?
- 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.
- How severe is CVE-2021-33601?
- CVE-2021-33601 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability high.
- Is CVE-2021-33601 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-33601?
- CVE-2021-33601 affects F-secure Internet Gatekeeper. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-33601?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-33601 published?
- CVE-2021-33601 was published on 2021-09-28 and last updated on 2026-06-17.
References
- https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33601
Affected products (1)
- cpe:2.3:a:f-secure:internet_gatekeeper:*:*:*:*:*:*:*:*
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