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CVE-2026-97960VulnerabilityPublished Updated

Microsoft · perf/x86/intel: Prevent drain_pebs() reentry

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-97960· Medium

Not known to be exploited · fixed in c55599c0ec2aa020e41a0599c3044c56d8a2e7d9 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:19 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in c55599c0ec2aa020e41a0599c3044c56d8a2e7d9, a56c03a397e2cd0c4cf8da96dcd6214f7d0e7d8c, a5fe19dd8b3ed5fad6e5e0f0c58c7245043ee4af +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Sep 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
  • >=6.3.7 <6.4
Fixed in
  • c55599c0ec2aa020e41a0599c3044c56d8a2e7d9
  • a56c03a397e2cd0c4cf8da96dcd6214f7d0e7d8c
  • a5fe19dd8b3ed5fad6e5e0f0c58c7245043ee4af
  • 9882068ed242fcd4743f53027e8c790e88dcafff
  • 999e482fdf89400cc1ae937680fc05096b4c915b
  • 6.4
LinuxLinuxAffected
  • =6.4
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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