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CVE-2026-98034VulnerabilityPublished Updated

Microsoft · bpf: Mark NULL kptr stores precise

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98034· High

Not known to be exploited · fixed in ecdc5043794c9184aa8e6c814603899479c46b35 : 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 ecdc5043794c9184aa8e6c814603899479c46b35, bb667eb575c906f24c707986541a99424c5b07ea, b8b98d3d37908402ff63515fa4d7574235436ea8 +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
  • >=5.18.18 <5.19
Fixed in
  • ecdc5043794c9184aa8e6c814603899479c46b35
  • bb667eb575c906f24c707986541a99424c5b07ea
  • b8b98d3d37908402ff63515fa4d7574235436ea8
  • 86168208737bdd267d92d855d453d1d2f840df19
  • 86a3171c90bfc35a54e9d83cd197ca0d72d2f4e4
  • 5.19
LinuxLinuxAffected
  • =5.19
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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