Heap-based buffer overflow in FortiManager and FortiAnalyzer - CVE-2026-126212
Published: November 11, 2026
Vulnerability identifier: #VU165275
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-126212
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote privileged user to execute arbitrary code.
The vulnerability exists due to heap-based buffer overflow. An authenticated administrator can execute unauthorized code or commands or cause a denial of service via specially crafted JSON-RPC requests.
Affected software
FortiManager
FortiAnalyzer
FortiAnalyzer
How to mitigate CVE-2026-126212
Install update from vendor's website.
FortiManager - addressed in versions 7.4.12, 7.6.8, 8.0.2
FortiAnalyzer - addressed in versions 7.4.12, 7.6.8, 8.0.2
FortiAnalyzer - addressed in versions 7.4.12, 7.6.8, 8.0.2