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CVE-2026-99124VulnerabilityPublished

Microsoft · s390/pci: Fix leak of uninitialized kernel data in SCLP report

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99124· Low

Not known to be exploited · fixed in ba5001db9bb23ff7d2ea328c405c287ffb07786f : update Microsoft when convenient.

Data as of 29 Oct 2026, 11:49 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in ba5001db9bb23ff7d2ea328c405c287ffb07786f, 126a7c227d8543e13903dd5622640c1f0fcc5a16, 8ac60ae2a307a50b599bf5d300b448d638f3ba29

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 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 29 Oct 2026.

What to do

Upgrade Linux to ba5001db9bb23ff7d2ea328c405c287ffb07786f, 126a7c227d8543e13903dd5622640c1f0fcc5a16 or 8ac60ae2a307a50b599bf5d300b448d638f3ba29.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 368704a65be8620df795ccbeb44e025dafbc3e1f, < ba5001db9bb23ff7d2ea328c405c287ffb07786f
Fixed in
  • ba5001db9bb23ff7d2ea328c405c287ffb07786f
LinuxLinuxAffected
  • ≥ 368704a65be8620df795ccbeb44e025dafbc3e1f, < 126a7c227d8543e13903dd5622640c1f0fcc5a16
Fixed in
  • 126a7c227d8543e13903dd5622640c1f0fcc5a16
LinuxLinuxAffected
  • ≥ 368704a65be8620df795ccbeb44e025dafbc3e1f, < 8ac60ae2a307a50b599bf5d300b448d638f3ba29
Fixed in
  • 8ac60ae2a307a50b599bf5d300b448d638f3ba29
LinuxLinuxAffected
  • =4.7
Fixed in–

Description

CVE-2026-99124 is a vulnerability in Microsoft software version 3.0 related to the s390/pci component, where uninitialized kernel data is leaked in the SCLP report. The description and details are minimal, with no CVSS score or exploit information available.

References

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