Null Pointer Dereference in Fortinet FortiAuthenticator Affecting Multiple Versions
CVE-2026-126246

7.5HIGH

Key Information:

Vendor

Fortinet
Status
Fortiauthenticator
Vendor
CVE Published:
11 November 2026

What is CVE-2026-126246?

A null pointer dereference vulnerability exists in Fortinet's FortiAuthenticator affecting various versions. This flaw allows unauthenticated attackers to exploit the system by sending crafted HTTP requests, potentially leading to a denial of service condition. Organizations using affected versions should review their security measures and update to the latest releases to mitigate this issue.

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-26-260

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

.