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Vulnerability record · CVE-2026-23661 · published 10 March 2026

CVE-2026-23661: Microsoft azure iot explorer cleartext transmission vulnerability

Microsoft · Azure Iot Explorer

Cleartext transmission of sensitive information in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.

7.5 CVSS 3.1 High EPSS 0.70% · top 48.6% CWE-319 · Cleartext transmission
7.5CVSS 3.1 base score
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Cleartext transmission of sensitive information in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23661 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2026-26121Microsoft azure iot explorer improper input validation vulnerabilityServer-side request forgery (ssrf) in Azure IoT Explorer allows an unauthorized attacker to perform spoofing over a network.EPSS 1.0%7.5CVE-2026-23662Microsoft azure iot explorer missing authentication for critical function vulnerabilityMissing authentication for critical function in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.EPSS 0.72%7.5CVE-2026-23664Microsoft azure iot explorer vulnerabilityImproper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information ove…EPSS 1.00%6.5CVE-2026-21528Microsoft azure iot explorer exposure of resource to wrong sphere vulnerabilityBinding to an unrestricted ip address in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2026-23661), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.