CVE-2023-39248: Dell Networking OS10

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Dell OS10 Networking Switches running 10.5.2.x and above contain an Uncontrolled Resource Consumption (Denial of Service) vulnerability, when switches are configured with VLT and VRRP. A remote unauthenticated user can cause the network to be flooded leading to Denial of Service for actual network users. This is a high severity vulnerability as it allows an attacker to cause an outage of network. Dell recommends customers to upgrade at the earliest opportunity.

Affected products

• Dell Networking OS10: version 10.5.5.5 only

Published 2023-12-05. Last modified 2026-06-17.