CVE-2026-23662Network attack vector

Unauthenticated file disclosure via exposed HTTP API

Published Mar 10, 2026 · Updated Mar 10, 2026

Missing authentication in Azure IoT Explorer before 0.15.13 allows remote attackers to read local files over a network. The Electron app's embedded HTTP server binds to all network interfaces and exposes unauthenticated API endpoints, including its file-reading API. Exposure requires the desktop app to be running with its server reachable; attackers can retrieve files accessible to the user account.

CVSS severity7.5
High
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Azure IoT Explorer before 0.15.13 allows remote attackers to read local files over a network. The Electron app's embedded HTTP server binds to all network interfaces and exposes unauthenticated API endpoints, including its file-reading API. Exposure requires the desktop app to be running with its server reachable; attackers can retrieve files accessible to the user account.

The record

CVE
CVE-2026-23662
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Microsoft
Product
Azure IoT Explorer
Classifications
CWE-306, CWE-319, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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 <0.15.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Azure IoT Explorerversion=1.0.0 <0.15.13

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-319Cleartext Transmission of Sensitive Information
T1190Exploit Public-Facing Application
T1005Data from Local System

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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