Critical 9.1Published May 12, 2026

CVE-2026-44277A improper access control vulnerability in Fortinet FortiAuthenticator 8.0.2, FortiAuthenticator 8.0.0, FortiAuthenticator 6.6.0 through 6.6.8, FortiAuthenticator 6.5.0 through 6.5.6 may allow attack…

Updated under an hour ago (Oct 29, 2026, 1:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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A improper access control vulnerability in Fortinet FortiAuthenticator 8.0.2, FortiAuthenticator 8.0.0, FortiAuthenticator 6.6.0 through 6.6.8, FortiAuthenticator 6.5.0 through 6.5.6 may allow attacker to execute unauthorized code or commands via crafted requests.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: fortinet
NVD analysis: Modified
Record last updated: May 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Fortinet FortiAuthenticator fortinet:fortiauthenticator	8.0.2; 8.0.0; from 6.6.0 through 6.6.8; from 6.5.0 through 6.5.6; from 6.4.0 through 6.4.10	CNA record
fortinet fortiauthenticator fortinet:fortiauthenticator	from 6.4.0 through 6.4.10; from 6.5.0 before 6.5.7; from 6.6.0 before 6.6.9; from 8.0.0 before 8.0.3	NVD

References

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-128	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.