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9.8 Critical

CVE-2025-55232 Deserialization of untrusted data in Microsoft High Performance Compute Pack (HPC) allows an unauthorized attacker to…

Description

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

Affected products and versions

Product	Affected versions	Fixed in
Microsoft HPC Pack 2019 1.0	1.0.0 → latest	No fix stated

References

Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability msrc.microsoft.com

Timeline

Published September 9, 2025
Last modified February 20, 2026

The 5 CVEs of Microsoft HPC Pack 2019 →

CVE-2026-59133 Execution with unnecessary privileges in Microsoft High Performance Computing (HPC) Pack allows an authorized attacker… 8.8 High CVE-2026-59124 Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker… 9.8 Critical CVE-2026-32184 Deserialization of untrusted data in Microsoft High Performance Compute Pack (HPC) allows an authorized attacker to… 7.8 High CVE-2025-21198 Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability 9.0 Critical

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