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VulnerabilityPublished Updated

CVE-2026-98714: Linux kernel · KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited : upgrade to e27fc915c8f575ab5630e27d97465c2077d4b9d1 or 8676b29d186fcb5c1251d8152fc91d19421e5600 when convenient.

Data as of 26 Oct 2026, 14:18 UTC

Severity
Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e27fc915c8f575ab5630e27d97465c2077d4b9d1, 8676b29d186fcb5c1251d8152fc91d19421e5600

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Linux kernel to e27fc915c8f575ab5630e27d97465c2077d4b9d1 or 8676b29d186fcb5c1251d8152fc91d19421e5600.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 8d28fec406e4d5ce6c109fe12699976e72e9748e, < e27fc915c8f575ab5630e27d97465c2077d4b9d1
Fixed in
  • e27fc915c8f575ab5630e27d97465c2077d4b9d1
LinuxLinuxAffected
  • ≥ 8d28fec406e4d5ce6c109fe12699976e72e9748e, < 8676b29d186fcb5c1251d8152fc91d19421e5600
Fixed in
  • 8676b29d186fcb5c1251d8152fc91d19421e5600
LinuxLinuxAffected
  • =2.6.38
Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel as identified by the fixed commit hashes. Users should update to the fixed versions to ensure this vulnerability is resolved.

Description

A vulnerability in the Linux kernel's KVM SVM implementation was fixed by ensuring that control fields are updated on VMEXIT only if the VMRUN instruction succeeded. If VMRUN fails, certain control fields remain unchanged to avoid undefined behavior as per AMD's architectural guidance.

References

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