CVE-2026-23664 Azure IoT Explorer Information Disclosure Vulnerability

High 7.5 Published 10 Mar 2026 Updated 19 Jun 2026

An attacker can disclose information over the network due to improper communication channel restrictions in Azure IoT Explorer.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-23664?

CVE-2026-23664 is a high-severity vulnerability in Microsoft Azure IoT Explorer, published on 10 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.

Weakness: CWE-923

Which versions are affected by CVE-2026-23664?

It affects 1 product.

Products include Microsoft Azure Iot Explorer.

How do I fix CVE-2026-23664?

No fix has been published for CVE-2026-23664 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-23664 being exploited?

There is no known exploitation of CVE-2026-23664 in the wild and no public exploit code.

Sources

Also known as GHSA-rf49-wjfj-qp4h.