CVE-2026-20185

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of&amp;nbsp;Cisco 350 Series Managed Switches (SG350) and Cisco 350X Series Stackable Managed Switches (SG350X)&amp;nbsp;firmware could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.&amp;nbsp;<br /> <br /> This vulnerability is due to improper error handling when parsing response data for a specific SNMP request. An attacker could exploit this vulnerability by sending a specific SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.<br /> This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMPv2c or earlier, the attacker must know a valid read-write or read-only SNMP community string for the affected system. To exploit this vulnerability through SNMPv3, the attacker must have valid SNMP user credentials for the affected system.