CVE-2026-89914

9.3 CRITICAL 0.2% exploit odds No fix listed Other OS & kernel

What it is

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decode_range_tlbi() helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not overflow PA bits when this is used for S2 invalidation.

At a glance

Exploitability: Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-09-11 19:38 UTC ReservedThe CVE id was reserved by its CNA
2026-09-16 11:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-19 09:18 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-16 11:17 UTC
Last modified: 2026-10-19 09:18 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Record status: Received

Attack profile CVSS 3.1 · 9.3

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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References

NVD record · CVE.org record