CVE-2026-126242

EUVD-2026-123866
A incorrect authorization vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an attacker to bypass authentication and gain unauthorized access. Full impersonation however requires the attacker to obtain pre-required id and data via other means.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
fortinetCNA
7.4 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
fortinetfortiauthenticator
8.0.0 ≤
𝑥
≤ 8.0.3
CNA
fortinetfortiauthenticator
6.6.0 ≤
𝑥
≤ 6.6.10
CNA
Common Weakness Enumeration
References
https://fortiguard.fortinet.com/psirt/FG-IR-26-257