SB2026111113 - Stack-based buffer overflow in FortiAnalyzer and FortiManager
Published: November 11, 2026
Security Bulletin ID
SB2026111113
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) Stack-based buffer overflow (CVE-ID: CVE-2026-126223)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: 8.6 [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]
The vulnerability allows a remote privileged user to execute arbitrary code.
The vulnerability exists due to stack-based buffer overflow. An authenticated administrator can execute unauthorized code or commands or cause a denial of service via specially crafted JSON-RPC requests.
Remediation
Install update from vendor's website.