Input validation error in Cisco Systems, Inc products - CVE-2023-20169
Published: August 24, 2023
Vulnerability identifier: #VU79940
CSH Severity: Low
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-2023-20169
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Intermediate System-to-Intermediate System (IS-IS) protocol. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Cisco Nexus 3000 Series Switches
Cisco Nexus 9000 Series Switches NX-OS Mode
Cisco NX-OS
Cisco Nexus 9000 Series Switches NX-OS Mode
Cisco NX-OS
How to mitigate CVE-2023-20169
Install updates from vendor's website.
Cisco NX-OS - addressed in versions 10.3(3), 10.3(99w)