Stack-based buffer overflow in FortiWAN - CVE-2021-26112
Published: April 5, 2022
Vulnerability identifier: #VU61903
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-26112
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within network daemons and in the command line interpreter of FortiWAN. A remote unauthenticated attacker can send a specially crafted request toi the system, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
FortiWAN
How to mitigate CVE-2021-26112
Install updates from vendor's website.
FortiWAN - update to 4.5.9