SB2026111190 - Improper authorization in FortiManager FGFM
Published: November 11, 2026
Security Bulletin ID
SB2026111190
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authorization (CVE-ID: CVE-2026-126261)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute unauthorized code or commands.
The vulnerability exists due to improper authorization in the FGFM component of FortiManager and FortiAnalyzer when granting elevated access before the registration password is verified. A remote attacker can send crafted FGFM packets to a reachable FGFM port to execute unauthorized code or commands.
Remediation
Install update from vendor's website.