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Deserialization Flaw in Microsoft HPC Pack Allows Authorized User to Escalate Privileges

Last refreshed2026-09-26

Status: UPDATED  |  Advisory ID: CVE-2026-32184

Key Details

CVECVE-2026-32184
CVSS Score / Version7.8 (High) / CVSS v3.1
Updated2026-09-24
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Proseattack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected productsMicrosoft HPC Pack
Classified asCWE-502 (Deserialization of Untrusted Data)
Exploitation prediction (EPSS)2.51% probability of exploitation in the next 30 days (84% percentile) -- FIRST.org's EPSS model.

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
MicrosoftHPC Pack
SubsystemsGeneral OT
SectorsMultiple

What to Know

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

What to Do

Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-32184
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-32184
Vendor advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32184