CVE-2026-21528

mediumpriority · track · 0EPSS 0.005 · 46 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.55% (46th) EPSS

CVSS 6.5 · medium

Is it mine?

23 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Binding to an unrestricted ip address in Azure IoT Explorer allows an unauthorized attacker to disclose information over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedAzure IoT Explorermsrc_csaf
0.15.13:Source Code (tar.gz):https://github.com/Azure/azure-iot-explorer/releases/tag/v0.15.13
https://github.com/Azure/azure-iot-explorer/releases/tag/v0.15.13

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:Csecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · secure@microsoft.com USexploitability 3.9 · impact 2.5

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-668USprimaryCWE-1327USCWE-1327USCWE-1327USCWE-1327US

affected products (23)

Products and version ranges known to be affected.

Microsoft Azure AI Language Authoringall versionscert_bundDEcpe:/a:microsoft:azure:ai_language_authoring
Microsoft Azure ARCall versionscert_bundDEcpe:/a:microsoft:azure:arc
Microsoft Azure DevOps Server 2022all versionscert_bundDEcpe:/o:microsoft:azure_devops_server:2022
Microsoft Azure Front Doorall versionscert_bundDEcpe:/a:microsoft:azure:front_door
Microsoft Azure Functionsall versionscert_bundDEcpe:/a:microsoft:azure:functions
Microsoft Azure HDInsightall versionscert_bundDEcpe:/a:microsoft:azure:hdinsight
Microsoft Azure IoT Explorerall versionscert_bundDEcpe:/a:microsoft:azure:iot_explorer
Microsoft Azure Localall versionscert_bundDEcpe:/a:microsoft:azure:local
Microsoft Azure IoT Explorer1.0.0 → 0.15.13enisa_euvdEU
Microsoft Corp Azure IoT Explorer≤ 0.15.13fstec_bduRU
Azure IoT Explorerall versionsfixedmsrc_csafUS
Azure IoT Explorer< 0.15.13msrc_csafUS
Microsoft Azure≤ vers:unknown/*ncsc_nlNL
Microsoft Azure AI Language Authoring≤ vers:unknown/*ncsc_nlNL
Microsoft Azure ARC≤ vers:unknown/*ncsc_nlNL
Microsoft Azure DevOps Server 2022≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Front Door≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Functions≤ vers:unknown/*ncsc_nlNL
Microsoft Azure HDInsight≤ vers:unknown/*ncsc_nlNL
Microsoft Azure IoT Explorer≤ vers:unknown/*ncsc_nlNL

showing 20 of 23

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0057Kwetsbaarheden verholpen in Microsoft AzureNL2026-02-10csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse Azure componenten.
WID-SEC-W-2026-0370Microsoft Azure-Produkte: Mehrere SchwachstellenDeutsch2026-02-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure und Microsoft Azure DevOps Server ausnutzen, um sich erweiterte Berechtigungen zu verschaffen, beliebigen Code auszuführen – sogar mit Administratorrechten –, Spoofing-Angriffe durchzuführen und vertrauliche Informationen offenzulegen.
msrc_CVE-2026-21528Azure IoT Explorer Information Disclosure Vulnerability2026-02-10csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf ncsc_nl NVD CVE.org MITRE

published 2026-02-10modified 2026-06-17

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references (3)

External citations — patches, advisories, analysis.

scry

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