Medium severity · published Sep 8, 2026
CVE-2026-84386
A unverified ownership vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.7, FortiClientWindows 7.2 all versions may allow attacker to improper access control via via…
5.1
CVSS
0.1%
EPSS
No
On KEV
Description
A unverified ownership vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.7, FortiClientWindows 7.2 all versions may allow attacker to improper access control via via an exposed minifilter communication port.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiClientWindows · Fortinet
7.4.0 through 7.4.7; 7.2.0 through 7.2.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84386
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84386
fortiguard.fortinet.com
https://fortiguard.fortinet.com/psirt/FG-IR-26-165
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