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TI-2025-15167 Aliases CVE-2025-21198GHSA-j397-w275-xjh3

Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability

Priority MEDIUM 43CWE-306Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00942 61st percentileScored 2026-11-07
Fix Fixed Microsoft HPC Pack 2016 (Microsoft): 2016.3Microsoft HPC Pack 2019 (Microsoft): 6.3.8328.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft HPC Pack 20161.0.0 to before 2016.32016.3Patch availableCNA
MicrosoftMicrosoft HPC Pack 20191.0.0 to before 6.3.8328.06.3.8328.0Patch availableCNA
  • Microsoft HPC Pack 2016 VendorMicrosoft Affected 1.0.0 to before 2016.3 Fixed in 2016.3 Patch available CNA
  • Microsoft HPC Pack 2019 VendorMicrosoft Affected 1.0.0 to before 6.3.8328.0 Fixed in 6.3.8328.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:hpc_pack_2016:*:*:*:*:*:*:*:*before 2016.3VulnerableMicrosoft
cpe:2.3:a:microsoft:hpc_pack_2019:*:*:*:*:*:*:*:*before 6.3.8328.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:hpc_pack_2016:*:*:*:*:*:*:*:* Versions before 2016.3 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:hpc_pack_2019:*:*:*:*:*:*:*:* Versions before 6.3.8328.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft HPC Pack 2016 (Microsoft) Fixed in 2016.3
  • Fix · CNA Microsoft HPC Pack 2019 (Microsoft) Fixed in 6.3.8328.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft HPC Pack 2016Fixed 2016.3 · Security Update
Microsoft HPC Pack 2019Fixed 6.3.8328.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-21198
  2. 2026-10-03 Alias added: GHSA-j397-w275-xjh3

References

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences