---
id: CVE-2026-59124
title: >-
  Deserialization of untrusted data in Microsoft High Performance Computing
  (HPC) Pack allows an unauthorized attacker to execute code over a network.
summary: >-
  Deserialization of untrusted data in Microsoft High Performance Computing
  (HPC) Pack allows an unauthorized attacker to execute code over a network.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
vendor: microsoft
product: windows_app
affected:
  - windows_app < 2.0.1314.0
patched:
  - windows_app 2.0.1314.0
published: '2026-08-11'
updated: '2026-08-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59124'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59124'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.01684
epssPercentile: 0.76001
ingestedAt: '2026-08-16T19:41:32.805Z'
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-12T03:56:34.065271Z'
---

## Overview

Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker to execute code over a network.

## Affected

- `windows_app < 2.0.1314.0`

## Remediation

Upgrade past the affected range:

- `windows_app 2.0.1314.0`