CVE-2025-20191 Multiple Cisco Products Denial of Service Vulnerability

A vulnerability in the Switch Integrated Security Features SISF of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller WLC AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition on an affected...

Cisco IOS XE Software Switch Integrated Security Features IPv6 DoS (cisco-sa-20180328-sisf)

According to its self-reported version, Cisco IOS XE Software is affected by a denial of service DoS vulnerability in the Switch Integrated Security Features due to incorrect handling of crafted IPv6 packets. An unauthenticated, remote attacker can exploit this, by sending crafted IPv6 packets to...

Cisco IOS XE Software Denial of Service Vulnerability (CNVD-2018-08474)

Cisco IOS is the interconnected Internet operating system used on most Cisco Systems routers and network switches. A security vulnerability in the Switch Integrated Security feature of Cisco IOS XE Software for handling IPv6 packets can be exploited by a remote attacker to submit a special reques...