CVE record · CVE-2026-89558

md/raid10: fix still_degraded being inverted in raid10_sync_request()

CVSS 9.8 CriticalCriticalEPSS 0.0063 · 51st percentile

Critical, because:

CVSS score 9.8: 9.0 or more.

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 fe6a19d40ceb44281905485f56dda715e3214e0e to before 9bb8da6ecb330a5b1ac9b96f1e55f134a7aef1d4 git affected fe6a19d40ceb44281905485f56dda715e3214e0e to before 0efabe6229dc683dbf6eeebd0f9fddc7971ed420 git affected fe6a19d40ceb44281905485f56dda715e3214e0e to before 00449d752bee9c8787f42ea1bf533a9fb17f9b6b git affected fe6a19d40ceb44281905485f56dda715e3214e0e to before 47f1441b281decde6954a2fa82b4131637d685ac git Other versions: unaffected
Linux	Linux	affected 6.12 unaffected before 6.12 semver unaffected 6.12.109 to 6.12., inclusive semver unaffected 6.18.50 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-2026-89558
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
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0063, the 51st 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.