Medium severity · published Dec 9, 2021
CVE-2021-43204
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…
4.4
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Forticlient · Fortinet
5.0.0 through 5.0.11; 5.4.0 through 5.4.5; 5.6.0 through 5.6.6; 6.0.0 through 6.0.10; 6.2.0 through 6.2.9; 4.0.1; +30 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43204
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43204
Patch
https://fortiguard.com/advisory/FG-IR-21-167
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