CVE-2026-20185 | Cisco Small Business Smart and Managed Switches 2.5.9.54/2.5.9.55 SNMP Subsystem heap-based overflow (cisco-sa-sg350-snmp-dos-GEFZr2Tj)

A vulnerability, which was classified as critical, was found in Cisco Small Business Smart and Managed Switches 2.5.9.54/2.5.9.55. The impacted element is an unknown function of the component SNMP Subsystem. The manipulation results in heap-based buffer overflow.

This vulnerability is identified as CVE-2026-20185. The attack can be executed remotely. There is not any exploit available.

You should upgrade the affected component.