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CVE-2026-98717VulnerabilityPublished Updated

Microsoft · KVM: x86/mmu: Bail from shadow walks if the root is invalid or a dummy

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98717· High

Not known to be exploited · fixed in e1bcabc07efd029ab414894127411129ffdb8b48 : patch Microsoft soon.

Data as of 7 Nov 2026, 12:19 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in e1bcabc07efd029ab414894127411129ffdb8b48, b6249c1d5665098c8bf12f8d3e4712bf04c775bc, 951fce1510645ba5df38da6fb85ece5726ec347d +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 0e3223d8d00ac05849661f1b8b476d3caca251cf, < e1bcabc07efd029ab414894127411129ffdb8b48
Fixed in
  • e1bcabc07efd029ab414894127411129ffdb8b48
LinuxLinuxAffected
  • ≥ 0e3223d8d00ac05849661f1b8b476d3caca251cf, < b6249c1d5665098c8bf12f8d3e4712bf04c775bc
Fixed in
  • b6249c1d5665098c8bf12f8d3e4712bf04c775bc
LinuxLinuxAffected
  • ≥ 0e3223d8d00ac05849661f1b8b476d3caca251cf, < 951fce1510645ba5df38da6fb85ece5726ec347d
Fixed in
  • 951fce1510645ba5df38da6fb85ece5726ec347d
LinuxLinuxAffected
  • ≥ 0e3223d8d00ac05849661f1b8b476d3caca251cf, < 681e31f03ec9219099a66a0f6e1bc48e1b5aa914
Fixed in
  • 681e31f03ec9219099a66a0f6e1bc48e1b5aa914
LinuxLinuxAffected
  • ≥ 0e3223d8d00ac05849661f1b8b476d3caca251cf, < 97c1dcce17ef27853860c781f9912257e6adbf7c
Fixed in
  • 97c1dcce17ef27853860c781f9912257e6adbf7c
LinuxLinuxAffected
  • =6.6
Fixed in–

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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