New OVSwrap Linux Kernel Flaw Lets Local Users Gain Root via Open vSwitch

A memory corruption flaw in the Linux kernel’s Open vSwitch datapath gives ordinary local users a path to root on a broad set of default-configured distributions, and a public exploit ships with pre-built records for roughly 800 kernel builds.

The vulnerability, tracked as CVE-2026-64531 (CVSS score: 7.8) and codenamed OVSwrap by its discoverer, was disclosed by security researcher Asim