CVE-2025-21198

criticalpriority · track · 0OT risk · elevatedEPSS 0.009 · 61 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.94% (61st) EPSS

CVSS 9 · critical

Is it mine?

13 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft HPC Pack 2016msrc_csaf
2016.3:Security Update:https://learn.microsoft.com/en-us/powershell/high-performance-computing/release-notes-for-hpc-pack-2016-update-3?view=hpc16-ps
https://learn.microsoft.com/en-us/powershell/high-performance-computing/release-notes-for-hpc-pack-2016-update-3?view=hpc16-ps
FixedMicrosoft HPC Pack 2019msrc_csaf
6.3.8328.0:Security Update:https://learn.microsoft.com/en-us/powershell/high-performance-computing/release-notes-for-hpc-pack-2019-update-3?view=hpc19-ps
https://learn.microsoft.com/en-us/powershell/high-performance-computing/release-notes-for-hpc-pack-2019-update-3?view=hpc19-ps

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.2–9

v3.19criticalAV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19criticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.19criticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.3 · impact 6

v3.18.2highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19criticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306USCWE-306USCWE-306US

affected products (13)

Products and version ranges known to be affected.

Microsoft Azure HPC Pack 2016all versionscert_bundDEcpe:/a:microsoft:azure:hpc_pack_2016
Microsoft Azure HPC Pack 2019all versionscert_bundDEcpe:/a:microsoft:azure:hpc_pack_2019
Microsoft Microsoft HPC Pack 20161.0.0 → 2016.3enisa_euvdEU
Microsoft Microsoft HPC Pack 20191.0.0 → 6.3.8328.0enisa_euvdEU
Microsoft Corp Microsoft HPC Pack≤ 2019fstec_bduRU
Microsoft Corp Microsoft HPC Pack≤ 2016fstec_bduRU
Microsoft HPC Pack 2016all versionsfixedmsrc_csafUS
Microsoft HPC Pack 2016< 2016.3msrc_csafUS
Microsoft HPC Pack 2019all versionsfixedmsrc_csafUS
Microsoft HPC Pack 2019< 6.3.8328.0msrc_csafUS
microsoft azure network watcherall versionsncsc_nlNLcpe:2.3:a:microsoft:azure_network_watcher:*:*:*:*:*:*:*:*
microsoft hpc pack 2016< 2016.3nvdUScpe:2.3:a:microsoft:hpc_pack_2016:*:*:*:*:*:*:*:*
microsoft hpc pack 2019< 6.3.8328.0nvdUScpe:2.3:a:microsoft:hpc_pack_2019:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2025-0048Kwetsbaarheden verholpen in Microsoft AzureNL2025-02-11csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Azure Network Watcher en de HPC Linux Node Agent.
WID-SEC-W-2025-0334Microsoft Azure (Network Watcher und HPC Pack): Mehrere SchwachstellenDeutsch2025-02-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure ausnutzen, um seine Privilegien zu erhöhen und beliebigen Code auszuführen.
msrc_CVE-2025-21198Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability2025-02-11csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf ncsc_nl nvd NVD CVE.org MITRE

published 2025-02-11modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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