Auth bypass in Fortinet Fortimanager

CVE-2026-126261

A improper authorization vulnerability in Fortinet FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.5, FortiManager 7.2.0 through 7.2.8 may allow an unauthenticated attacker that can reach the FGFM port to execute code or commands via crafted FGFM packets.

Published .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-126261?
CVE-2026-126261 is a critical-severity vulnerability in Fortinet Fortimanager, classified under Improper Authorization. CVSS score: 9.8/10. Published 2026-11-10.
How severe is CVE-2026-126261?
Critical severity. CVSS v3 base score is 9.8 out of 10.