CVE-2026-23664
CVE-2026-23664 is a high-severity vulnerability in Microsoft Azure Iot Explorer with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-923.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-10585
- Weakness: CWE-923
- Affected product: Microsoft Azure Iot Explorer
- Published:
- Last modified:
Description
Improper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
Frequently asked questions
- What is CVE-2026-23664?
- Improper restriction of communication channel to intended endpoints in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.
- How severe is CVE-2026-23664?
- CVE-2026-23664 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-23664 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-23664?
- CVE-2026-23664 affects Microsoft Azure Iot Explorer. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-23664?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-23664 have an EU (EUVD) identifier?
- Yes. CVE-2026-23664 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10585.
- When was CVE-2026-23664 published?
- CVE-2026-23664 was published on 2026-03-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_iot_explorer:*:*:*:*:*:*:*:*
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