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CVE-2026-64531

net: openvswitch: reject oversized nested action attrs

CVSS score

7.8

EPSS probability

%0.4

Risk score

0.0

Published

2 mo ago

Related Security News

Articles and analysis bulletins in which the press and security publications have covered this vulnerability:

The Hacker News10.08.2026

⚡ Weekly Recap: AI Goes Rogue, Metabase 0-Day, MCP Supply-Chain Attacks, and Router Backdoors

A lot of security problems still begin with someone doing a completely normal thing. Cloning a repo. Answering a call. Leaving a box exposed. Trusting the default. That pretty much covers the mood this week. Old bugs are back, supply chains are getting stranger, and some exploit paths are so short you wonder what was supposed to stop them in the first place. That’s only part of it. Here’s

The Hacker News05.08.2026

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

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