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TI-2026-42300 Aliases CVE-2026-59133GHSA-8h97-p2pm-gjpw

Microsoft High Performance Computing (HPC) Pack Elevation of Privilege Vulnerability

Priority MEDIUM 42CWE-250Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Execution with unnecessary privileges in Microsoft High Performance Computing (HPC) Pack allows an authorized attacker to elevate privileges over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00913 60th percentileScored 2026-11-07
Fix Fixed Microsoft: 1 update

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft HPC Pack 20191.0.0 to before 6.3.83596.3.8359Patch availableCNA
  • Microsoft HPC Pack 2019 VendorMicrosoft Affected 1.0.0 to before 6.3.8359 Fixed in 6.3.8359 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:windows:*:*before 2.0.1193.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:windows:*:* Versions before 2.0.1193.0 Vulnerable ·Microsoft

Remediation

Microsoft 1 update

  • KB5124659
    Security Update
    • Microsoft HPC Pack 2019 6.3.8359

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation More Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59133
  2. 2026-10-03 Alias added: GHSA-8h97-p2pm-gjpw

References

Patch 1

  • TI-2026-42292 Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2025-19580 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-31167 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-21342 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-34866 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-31004 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences