CVE-2026-64076

netfilter: bridge: eb_tables: close module init race

CVE-2026-64076 is fixed in 20 products on 1 platform, first by ALAS2023-2026-1881, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

9.8

Critical

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0014

3rd percentile

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: eb_tables: close module init race sashiko reports for unrelated patch: Does the core ebtables initialization in ebtables.c suffer from a similar race? Once nf_register_sockopt() completes, the sockopts are exposed globally. sockopt has to be registered last, just like in ip/ip6/arptables.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
bpftool6.18 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
bpftool6.18-debuginfo · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel-livepatch-6.18.35-68.127 · amzn 2023	1:1.0-0.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-debuginfo · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-devel · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-headers · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-modules-extra · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-modules-extra-common · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-tools · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-tools-debuginfo · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
kernel6.18-tools-devel · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
linux · Debian 13.5 (trixie)	6.12.115-2	DEBIAN-CVE-2026-64076	Jul 20, 2026
linux · Debian 14	7.0.12-1	DEBIAN-CVE-2026-64076	Jul 20, 2026
microvm-kernel6.18 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
perf6.18 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
perf6.18-debuginfo · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
python3-perf6.18 · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026
python3-perf6.18-debuginfo · amzn 2023	1:6.18.35-68.127.amzn2023	ALAS2023-2026-1881	Jun 22, 2026

Details

Published
June 22, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64076

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2026-64076">CVE-2026-64076 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.