CVE-2023-3966: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.

Affected products

• Fedoraproject Fedora: version 39 only; version 40 only
• Openvswitch Openvswitch: before 3.1.0 (fixed in 3.1.0)

Published 2024-02-22. Last modified 2026-06-17.