Improper Authorization in Fortinet FortiManager Products
CVE-2026-126261

9CRITICAL

Key Information:

Vendor

Fortinet
Status
Fortimanager
Vendor
CVE Published:
10 November 2026

What is CVE-2026-126261?

An improper authorization issue exists in Fortinet FortiManager products, allowing unauthenticated attackers who have access to the FGFM port to execute arbitrary code or commands through specially crafted FGFM packets. This vulnerability poses significant risks to the security and integrity of affected systems, potentially leading to unauthorized actions and data breaches.

Affected Version(s)

FortiManager 8.0.0

FortiManager 7.6.0 <= 7.6.7

FortiManager 7.4.0 <= 7.4.5

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-275

CVSS V3.1

Score:
9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.