synced 12 MIN AGO
01 Record

CVE-2021-33600

Denial of Service Vulnerability in Web Interface of F-Secure Internet Gatekeeper

MediumPUBLISHEDCNA: F-SecureUS
CNA base score5.4 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

02 Description

Denial of Service Vulnerability in Web Interface of F-Secure Internet Gatekeeper

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 48.3% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-09-28 09:06Z5 YR AGO
Last updated
2024-08-03 23:50Z2 YR AGO
Reserved
2021-05-27
Assigning CNA
F-SecureUS
Record state
PUBLISHED
Severity
Medium (CVSS 5.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
Data version
5.1
Document digest
fa487d60f435e20b1a84eb685d6174c2592e568f4527f41ae7201deaf7b098ba

05 Affected products

VendorProductVersionsPlatforms
F-SecureF-Secure Internet Gatekeeper5 Series All Version—

06 References

07 Remediation

FIX: Hotfix 9 will be published to fix this vulnerability. Download and instructions available at: https://www.f-secure.com/en/business/downloads/internet-gatekeeper