CVE-2025-55232

criticalpriority · track · 1EPSS 0.021 · 82 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.13% (82nd) EPSS

CVSS 9.8 · critical

Is it mine?

12 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

remediations

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

A vendor fix is available.

FixedMicrosoft HPC Pack 2019msrc_csaf
6.3.8352 Quick Fix QFE:Security Update:https://github.com/Azure/hpcpack/blob/master/CHANGELOG.md#hpc-pack-2019-update-3-qfe-kb5065994-638352---8182025
https://github.com/Azure/hpcpack/blob/master/CHANGELOG.md#hpc-pack-2019-update-3-qfe-kb5065994-638352---8182025

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502USCWE-502USCWE-502US

affected products (12)

Products and version ranges known to be affected.

Microsoft Azure Bot Serviceall versionscert_bundDEcpe:/a:microsoft:azure:bot_service
Microsoft Azure Connected Machine Agentall versionscert_bundDEcpe:/a:microsoft:azure:connected_machine_agent
Microsoft Azure Networkingall versionscert_bundDEcpe:/a:microsoft:azure:networking
Microsoft Entra IDall versionscert_bundDEcpe:/a:microsoft:entra:id
Microsoft High Performance Compute Pack 2019all versionscert_bundDEcpe:/a:microsoft:high_performance_compute_pack:2019
Microsoft Microsoft HPC Pack 20191.0.0 → 6.3.8352 Quick Fix QFEenisa_euvdEU
Microsoft Corp Microsoft HPC Pack≤ 2019fstec_bduRU
Microsoft Microsoft HPC Pack 2019all versionsfixedmsrc_csafUS
Microsoft Microsoft HPC Pack 2019< 6.3.8352 Quick Fix QFEmsrc_csafUS
Microsoft Azure Connected Machine Agent≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft HPC Pack 2019≤ vers:unknown/*ncsc_nlNL
microsoft hpc pack< 6.3.8352nvdUScpe:2.3:a:microsoft:hpc_pack:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2025-0279Kwetsbaarheden verholpen in Microsoft AzureNL2025-09-09csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Azure componenten.
WID-SEC-W-2025-2004Microsoft Azure und Microsoft Entra: Mehrere SchwachstellenDeutsch2025-09-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure und Microsoft Entra ausnutzen, um seine Privilegien zu erhöhen, und um beliebigen Programmcode auszuführen.
msrc_CVE-2025-55232Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability2025-09-09csaf · 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 2025-09-09modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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