Buffer overflow in FortiSwitch AX - CVE-2026-22627
Published: March 10, 2026
Vulnerability identifier: #VU123737
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-22627
CWE-ID: CWE-120
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiSwitch AX
FortiSwitch AX
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error when handling LLDP packets. A remote attacker on the local network can send specially crafted packets to the affected device, trigger a buffer overflow and execute arbitrary code on the system.
How to mitigate CVE-2026-22627
Install updates from vendor's website.