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CVE-2021-43204

MEDIUM
4.4
CVSS Score
Published: December 9, 2021 at 09:04 AM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorForticlient

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4.1 and 6.4.0, version 6.2.9 and below, version 6.0.10 and below allows attacker to cause a complete denial of service of its components via changes of directory access permissions.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://fortiguard.com/advisory/FG-IR-21-167

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUMfortinet
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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