CVE-2026-23661

FAUCET Score

CVE-2026-23661 is a high-severity vulnerability (CVSS 7.5) affecting Microsoft Azure IoT Explorer, caused by the cleartext transmission of sensitive information. This flaw allows an unauthenticated attacker to remotely disclose sensitive data over a network with low attack complexity, posing a significant confidentiality risk. While not currently listed in CISA's KEV catalog and lacking public exploit code, it has garnered some community and media attention, notably during March 2026 Patch Tuesday.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 0.15.13CPE matchmatch criteria	cpe:2.3:a:microsoft:azure_iot_explorer::::::::

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

Exploitability Score

3.9

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.70%

Probability of exploitation in next 30 days

EPSS Percentile

49.5%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0070 is in the 26th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

microsoftpatch availablevia msrc

Product: Azure IoT ExplorerFixed in: 0.15.13

View patch

Vendor Advisories (1)

microsoft2026-Mar/CVE-2026-23661Important

Azure IoT Explorer Information Disclosure Vulnerability

Mar 10, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-23661

PatchVendor Advisory