known ransomware use

Fortinet FortiOS and FortiProxy Improper Authorization

Added to KEV
2022-01-10
Federal due date
2022-07-10
Vendor
Fortinet
Product
FortiOS and FortiProxy
EPSS
99.5th percentile (score 0.871, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2018-13382

CISA short description

An Improper Authorization vulnerability in Fortinet FortiOS and FortiProxy under SSL VPN web portal allows an unauthenticated attacker to modify the password.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.