Resource exhaustion in FortiSwitch - CVE-2021-26111
Published: June 1, 2021
Vulnerability identifier: #VU53719
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-26111
CWE-ID: CWE-400
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in lldpmedd daemon. A remote attacker on the local network can send specifically crafted LLDP/CDP/EDP packets to the device and exhaust all memory resources.
Affected software
FortiSwitch
How to mitigate CVE-2021-26111
Install updates from vendor's website.
FortiSwitch - addressed in versions 6.2.7, 6.4.7