CVE-2026-42834Network attack vector

Privilege escalation via unsafe link resolution

Published May 20, 2026 · Updated May 20, 2026

Improper link resolution in Microsoft Windows Admin Center in Azure before 0.72.0.0 allows remote authenticated users to elevate privileges. The published description says the product follows links before file access but does not identify the affected file-handling component or operation. The revised record places access over the network, while Microsoft's CVSS vector treats exploitation as local; the resulting privilege level is unspecified.

CVSS severity7.8
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper link resolution in Microsoft Windows Admin Center in Azure before 0.72.0.0 allows remote authenticated users to elevate privileges. The published description says the product follows links before file access but does not identify the affected file-handling component or operation. The revised record places access over the network, while Microsoft's CVSS vector treats exploitation as local; the resulting privilege level is unspecified.

The record

CVE
CVE-2026-42834
Published
May 20, 2026
Updated
May 20, 2026
Vendor
Microsoft
Product
Windows Admin Center in Azure
Classifications
CWE-59, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2026CVE publishedPublication date reported by the CVE source.
  2. May 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0 <0.72.0.0.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Windows Admin Center in Azureversion=1.0 <0.72.0.0.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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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