CVE-2026-98714Hinoki check available

Unspecified impact via premature VMCB control updates

Published Oct 18, 2026 · Updated Oct 18, 2026

Linux before 7.2.10 KVM SVM control handling allows attackers to cause unspecified impact via failed VMRUN operations. The svm_vcpu_run function clears the VMCB return-address-predictor clear request and marks control fields clean even when VMRUN fails, despite no architectural guarantee that the requested actions occurred. Exposure requires the AMD SVM execution path and a failed VMRUN; the public disclosure does not identify a concrete security consequence or the privileges needed to trigger it.

CVSS severityUnavailable
Unscored
EPSS probability0.15%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Linux before 7.2.10 KVM SVM control handling allows attackers to cause unspecified impact via failed VMRUN operations. The svm_vcpu_run function clears the VMCB return-address-predictor clear request and marks control fields clean even when VMRUN fails, despite no architectural guarantee that the requested actions occurred. Exposure requires the AMD SVM execution path and a failed VMRUN; the public disclosure does not identify a concrete security consequence or the privileges needed to trigger it.

The record

CVE
CVE-2026-98714
Published
Oct 18, 2026
Updated
Oct 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.2.10
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8676b29d186fcb5c1251d8152fc91d19421e5600
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e27fc915c8f575ab5630e27d97465c2077d4b9d1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0 <7.2.10; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8676b29d186fcb5c1251d8152fc91d19421e5600; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e27fc915c8f575ab5630e27d97465c2077d4b9d1

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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