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 on the same network to view sensitive data sent through the application’s unencrypted HTTP connection. Depending on how the application is used, this may include device connection information, authentication tokens, request data, file paths, and other information transmitted between the application and the IoT Hub. An attacker who intercepts this data may also be able to obtain device connection strings that could allow them to impersonate a device in the customer’s IoT environment.
Security updates
0.15.13 — https://github.com/Azure/azure-iot-explorer/releases/tag/v0.15.13
Vulnerabilities 1
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High 7.5
Azure IoT Explorer Information Disclosure Vulnerability
Cleartext transmission of sensitive information in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
Revision history
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#1
Information published.
References
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CVE-2026-23661 Azure IoT Explorer Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23661
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss