SB2026021042 - Missing authorization in FortiAuthenticator
Published: February 10, 2026
Security Bulletin ID
SB2026021042
CSH Severity
Low
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) Missing authorization (CVE-ID: CVE-2026-21743)
CWE-ID: CWE-862 - Missing Authorization
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote privileged user to execute arbitrary code.
The vulnerability exists due to missing authorization on CSV user import. A read-only user can make modification to local users via a file upload to an unprotected endpoint.
Remediation
Install update from vendor's website.