---
id: CVE-2026-32184
title: >-
  Microsoft High Performance Compute (HPC) Pack Elevation of Privilege
  Vulnerability
summary: >-
  Deserialization of untrusted data in Microsoft High Performance Compute Pack
  (HPC) allows an authorized attacker to elevate privileges locally.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-502
vendor: Microsoft
product: Microsoft HPC Pack 2019
affected:
  - hpc_pack_2019 >= 1.0.0 < 6.3.8355
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-04-10T00:00:00+00:00'
published: '2026-04-14'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T17:25:21.852Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-32184'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32184'
    label: >-
      Microsoft High Performance Compute (HPC) Pack Elevation of Privilege
      Vulnerability
tags:
  - cve.org
epss: 0.02513
epssPercentile: 0.84135
ingestedAt: '2026-09-25T18:14:20.445Z'
---

## Overview

Deserialization of untrusted data in Microsoft High Performance Compute Pack (HPC) allows an authorized attacker to elevate privileges locally.

## Affected

- `hpc_pack_2019 >= 1.0.0 < 6.3.8355`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.