CVE record · CVE-2026-90232

amt: Don't support cross-netns setup.

No CVSS scoreEPSS 0.0022 · 11th percentile

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected b9022b53adad88fd6cf2b9718c9e498504f3e1dd to before 2a5a578d2e13d2dd6c1b272be7cfa0a6dd64552c git affected b9022b53adad88fd6cf2b9718c9e498504f3e1dd to before a457ff1189f22c2f15f69df55dc910b8b6d7a77d git affected b9022b53adad88fd6cf2b9718c9e498504f3e1dd to before 5ebaad6cf2a639afbf0b265f9a7d1fb6f656a37e git affected b9022b53adad88fd6cf2b9718c9e498504f3e1dd to before 569eb11f0990849ba48706a2bfa743273707e254 git affected b9022b53adad88fd6cf2b9718c9e498504f3e1dd to before e1dc0af719a2566ae7ccb82c0a11f70aa54908e9 git affected b9022b53adad88fd6cf2b9718c9e498504f3e1dd to before e99ecc3046ea5f5c6b5e1f8b4ef854c6c6998e06 git Other versions: unaffected
Linux	Linux	affected 5.16 unaffected before 5.16 semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.160 to 6.6., inclusive semver unaffected 6.12.114 to 6.12., inclusive semver unaffected 6.18.52 to 6.18., inclusive semver unaffected 7.2.6 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-90232
CNA: Linux
Tags: Linux kernel
Published: 17 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Linux kernel amt driver is affected from version 5.16 until fixed. A local user who can set up AMT devices across network namespaces can cause removing the lower device to hang until all upper devices are removed. Upgrade to 6.1.191, 6.6.160, 6.12.114, 6.18.52, or a later release in the same series.

Written 12 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0022, the 11th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.