What is CVE-2026-23661?

CVE-2026-23661 is a high-severity vulnerability in Microsoft Azure Iot Explorer, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.5/10. Published 2026-03-10.

How severe is CVE-2026-23661?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Microsoft Azure Iot Explorer

CVE-2026-23661

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

EPSS: 0.001 (21.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C.

Affected products

Microsoft Azure Iot Explorer — versions 1.0.0

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

Azure IoT Explorer Information Disclosure Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-23661?: CVE-2026-23661 is a high-severity vulnerability in Microsoft Azure Iot Explorer, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.5/10. Published 2026-03-10.
How severe is CVE-2026-23661?: High severity. CVSS v3 base score is 7.5 out of 10.