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CVE record · CVE-2026-89918

KVM: arm64: Correctly handle end of VA space TLBI invalidation

CVSS 9.3 CriticalCriticalEPSS 0.0019 · 9th percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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
VendorProductVersions
Linux Linux
  • affected 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929 to before ce447651a52ec077694172af10c4fffb11f56c43 git
  • affected 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929 to before c624731ca6fe59ad8909ce4108301aa7560a91d6 git
  • affected 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929 to before 34af2c3e31f91a739dc175459fdbd99ed952b457 git
Other versions: unaffected
Linux Linux
  • affected 6.16
  • unaffected before 6.16 semver
  • unaffected 6.18.51 to 6.18.*, inclusive semver
  • unaffected 7.2.5 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-89918
CNA
Linux
Tags
Published
16 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

ScoreRatingCVSSVectorSource
9.3 Critical 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0019, the 9th percentile, on 15 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 16 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.