Resource Allocation Vulnerability in Fortinet FortiAuthenticator
CVE-2026-126244

7.5HIGH

Key Information:

Vendor

Fortinet
Status
Fortiauthenticator
Vendor
CVE Published:
11 November 2026

What is CVE-2026-126244?

A resource allocation vulnerability in Fortinet FortiAuthenticator versions 8.0.0 to 8.0.3 and 6.6.0 to 6.6.10 allows unauthenticated attackers to exploit the system. This can lead to excessive consumption of system resources and may result in a denial of service (DoS), thereby affecting the availability of services.

Affected Version(s)

FortiAuthenticator 8.0.0 <= 8.0.3

FortiAuthenticator 6.6.0 <= 6.6.10

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-258

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.