Back to vendor advisories
Microsoft Security Response CenterCVE-2026-59133

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

HighVendor CVSS 8.8 / 10 1 CVE Published Aug 11, 2026 at 7:00 AM UTC

Summary

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

Products covered

  • Microsoft HPC Pack 2019

Remediation

Release Notes

Vendor-listed fixes

  • 6.3.8359

CVEs in this advisory 1

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added affected products: Microsoft HPC Pack 2019.
    • Removed affected products: Windows App Client for Windows Desktop.
    • Added fixed versions: 6.3.8359.
    • Removed fixed versions: 2.0.1193.0.
    • The vendor changed its remediation guidance.

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.