Vulnerability Bulletins

Cisco NX-OS Software TACACS+ or RADIUS Remote Authentication Directed Request Denial of Service Vulnerability

System information

Affected software Cisco


A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. A successful exploit could allow

More info:

Standar resources

Property Value
CVE CVE-2023-20168.

Version history

Version Comments Date
1.0 Advisory issued 2023-08-24
Ministerio de Defensa