What is CVE-2026-26121?

CVE-2026-26121 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Azure IOT Explorer Spoofing Vulnerability

Which CVE IDs does CVE-2026-26121 cover?

CVE-2026-26121 covers the following CVE IDs: CVE-2026-26121. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-26121?

CVE-2026-26121 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-26121?

CVE-2026-26121 affects 1 product, including: Azure IoT Explorer.

CVE-2026-26121HighCVSS 7.5

Azure IOT Explorer Spoofing Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-26121 →

📋 Description

Server-side request forgery (ssrf) in Azure IoT Explorer allows an unauthorized attacker to perform spoofing over a network.

🎯 Affected products1

Azure IoT Explorer

✅ Remediation

KBRelease Notes (Source Code (.zip)) — fixed build 0.15.14 KBRelease Notes (Source Code (tar.gz)) — fixed build 0.15.14

🔗 References (4)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26121
patchhttps://github.com/Azure/azure-iot-explorer/archive/refs/tags/v0.15.14.zip
referencehttps://github.com/Azure/azure-iot-explorer/releases/tag/v0.15.14
patchhttps://github.com/Azure/azure-iot-explorer/archive/refs/tags/v0.15.14.tar.gz