CVE record · CVE-2026-89570

cxl/mce: Make the MCE notifier per-region

CVSS 7.8 HighEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:44 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 516e5bd0b6bf4ae1ad072df637b428a737c3c870 to before 5563db13c9528a56c7161260ec75ec8690dc5608 git affected 516e5bd0b6bf4ae1ad072df637b428a737c3c870 to before 491d8c9ac98d55073bda778f88a5248d4cce3fa0 git affected 516e5bd0b6bf4ae1ad072df637b428a737c3c870 to before 775d0f4558f4cec0ee0c8966595d1add1791f36e git Other versions: unaffected
Linux	Linux	affected 6.15 unaffected before 6.15 semver unaffected 6.18.51 to 6.18., inclusive semver unaffected 7.2.4 to 7.2., inclusive semver unaffected 7.3 to *, inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-89570
CNA: Linux
Tags: Linux kernel
Published: 11 Sept 2026
Updated: 19 Oct 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

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0017, the 6th percentile, on 14 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 11 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.