CVE-2025-49692Public exploit

SYSTEM privilege escalation via MSI repair console

Published Sep 9, 2025 · Updated Feb 26, 2026

Improper access control in Microsoft Azure Connected Machine agent before 1.49 allows local users to gain SYSTEM privileges through MSI repair. The Windows MSI repair custom action creates the azcmagent scheduled task as SYSTEM and exposes a conhost.exe console that retains elevated rights. A low-privileged user with GUI access can hold schtasks.exe.mui with an opportunistic lock, keep the console open, and launch an arbitrary executable as SYSTEM.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Microsoft Azure Connected Machine agent before 1.49 allows local users to gain SYSTEM privileges through MSI repair. The Windows MSI repair custom action creates the azcmagent scheduled task as SYSTEM and exposes a conhost.exe console that retains elevated rights. A low-privileged user with GUI access can hold schtasks.exe.mui with an opportunistic lock, keep the console open, and launch an arbitrary executable as SYSTEM.

The record

CVE
CVE-2025-49692
Published
Sep 9, 2025
Updated
Feb 26, 2026
Vendor
Microsoft
Product
Azure Connected Machine agent
Classifications
CWE-284, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <1.49

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Azure Connected Machine agentversion=1.0.0 <1.49

Published CVSS scores

7.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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