Microsoft Azure IoT Explorer vulnerabilities

5 CVEs affecting Microsoft Azure IoT Explorer, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-26121, published 2026-03-10.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-26121, published 2026-03-10. High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days. Server-side request forgery (ssrf) in Azure IoT Explorer allows an unauthorized attacker to perform spoofing over a network.
• CVE-2026-23664, published 2026-03-10. High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days. Improper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
• CVE-2026-23662, published 2026-03-10. High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days. Missing authentication for critical function in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
• CVE-2026-23661, published 2026-03-10. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. Cleartext transmission of sensitive information in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
• CVE-2026-21528, published 2026-02-10. Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days. Binding to an unrestricted ip address in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.