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CVE-2021-33601

26
FAUCET Score

CVE-2021-33601 is a high-severity vulnerability affecting the web user interface of F-Secure Internet Gatekeeper, allowing an authenticated user to achieve arbitrary code execution. With a CVSS score of 8.8, it presents a significant risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.10, <= 5.50.47CPE matchmatch criteria
cpe:2.3:a:f-secure:internet_gatekeeper:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 53rd percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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