CVE-2026-26117

highpriority · track · 0OT risk · elevatedEPSS 0.003 · 23 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (23rd) EPSS

CVSS 7.8 · high

Is it mine?

22 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.

remediations

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

A vendor fix is available.

FixedArc Enabled Servers - Azure Connected Machine Agentmsrc_csaf
1.61:Security Update - Linux:https://learn.microsoft.com/en-us/azure/azure-arc/servers/agent-release-notes#version-161---february-2026
https://learn.microsoft.com/en-us/azure/azure-arc/servers/agent-release-notes#version-161---february-2026

cvss

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

7.8

010

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

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/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: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-288USCWE-288USCWE-288USCWE-288US

affected products (22)

Products and version ranges known to be affected.

Microsoft Azure AD SSH Login extension for Linuxall versionscert_bundDEcpe:/a:microsoft:azure:ad_ssh_login_extension_for_linux
Microsoft Azure Arc Enabled Servers-Connected Machine Agentall versionscert_bundDEcpe:/a:microsoft:azure:arc_enabled_servers_-_connected_machine_agent
Microsoft Azure IoT Explorerall versionscert_bundDEcpe:/a:microsoft:azure:iot_explorer
Microsoft Azure Linux Virtual Machines with Azure Diagnostics extensionall versionscert_bundDEcpe:/o:microsoft:azure_linux:virtual_machines_with_azure_diagnostics_extension
Microsoft Azure MCP Server Toolsall versionscert_bundDEcpe:/a:microsoft:azure:mcp_server_tools
Microsoft Windows Admin Center in Azure Portalall versionscert_bundDEcpe:/a:microsoft:windows_admin_center:in_azure_portal
Microsoft Windows Azure Automation Hybrid Worker Extensionall versionscert_bundDEcpe:/o:microsoft:windows:azure_automation_hybrid_worker_extension
Microsoft Arc Enabled Servers - Azure Connected Machine Agent1.0.0 → 1.61enisa_euvdEU
Microsoft Corp Azure Connected Machine Agent≤ 1.61fstec_bduRU
Microsoft Arc Enabled Servers - Azure Connected Machine Agentall versionsfixedmsrc_csafUS
Microsoft Arc Enabled Servers - Azure Connected Machine Agent< 1.61msrc_csafUS
Microsoft Arc Enabled Servers - Azure Connected Machine Agent≤ vers:unknown/*ncsc_nlNL
Microsoft Azure≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Automation Hybrid Worker Windows Extension≤ vers:unknown/*ncsc_nlNL
Microsoft Azure IoT Explorer≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Linux Virtual Machines with Azure Diagnostics extension≤ vers:unknown/*ncsc_nlNL
Microsoft Azure MCP Server Tools≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft ACI Confidential Containers≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Azure AD SSH Login extension for Linux≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Azure Container Instances Confidential Containers≤ vers:unknown/*ncsc_nlNL

showing 20 of 22

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0082Kwetsbaarheden verholpen in Microsoft AzureNL2026-03-10csaf · ncsc_nlNL
Microsoft heeft kwetbaarheden verholpen in diverse Azure componenten.
WID-SEC-W-2026-0655Microsoft Azure Komponenten: Mehrere SchwachstellenDeutsch2026-03-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Admin Center, Microsoft Azure und Microsoft Azure Linux ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, und um falsche Informationen darzustellen.
msrc_CVE-2026-26117Arc Enabled Servers - Azure Connected Machine Agent Elevation of Privilege Vulnerability2026-03-10csaf · 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 CVE.org MITRE

published 2026-03-10modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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