MSRC-CVE-2026-23664 — Azure IoT Explorer Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
This vulnerability could allow an attacker with network access to the exposed Azure IoT Explorer API port to view sensitive data that the application makes available without authentication. Depending on how the application is used, this may include file contents from the host system, directory listings, IoT device data or configuration details, and metadata retrieved through server-side request forgery (SSRF), such as Azure Instance Metadata Service (IMDS) information.

Security updates
0.15.13 — https://github.com/Azure/azure-iot-explorer/releases/tag/v0.15.13

Vulnerabilities 1

High 7.5

CVE-2026-23664

Azure IoT Explorer Information Disclosure Vulnerability

Improper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.

Microsoft Azure IoT Explorer

Mar 10, 2026

Revision history

2026-03-10 #1
Information published.

References

CVE-2026-23664 Azure IoT Explorer Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23664
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss