CVE-2026-32184

Received Received - Intake

Deserialization Vulnerability in Microsoft HPC Enables Local Privilege Escalation

Publication date: 2026-04-14

Last updated on: 2026-05-06

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-14

Last Modified

2026-05-06

Generated

2026-07-06

AI Q&A

2026-04-14

EPSS Evaluated

2026-07-05

NVD

CVE-2026-32184

EUVD

EUVD-2026-22565

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	hpc_pack	to 6.3.8355 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-502	The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

Executive Summary

This vulnerability involves the deserialization of untrusted data in the Microsoft High Performance Compute Pack (HPC). It allows an authorized attacker to elevate their privileges locally by exploiting the way the software processes serialized data.

Impact Analysis

An attacker who already has some level of access to the system can exploit this vulnerability to gain higher privileges. This means they could perform actions or access data that would normally be restricted, potentially leading to significant security risks such as data compromise or system control.

Mitigation Strategies

To mitigate this vulnerability, apply the security updates provided by Microsoft for the High Performance Compute Pack (HPC) as soon as they become available.

Ensure that only authorized users have local access to systems running the affected software to reduce the risk of privilege escalation.

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