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Full vulnerability report · 2026
CVE-2026-23664High confidence

Azure IoT Explorer Information Disclosure Vulnerability

Microsoft · Azure IoT Explorer

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-10585

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

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

What

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

Why

The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

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

Why

The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Restriction of Communication Channel to Intended Endpoints → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-923 ↗

CWE-923: Improper Restriction of Communication Channel to Intended Endpoints. The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
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

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-923
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-0655Microsoft Azure Komponenten: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Admin Center, Microsoft Azure und Microsoft Azure Linux ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, und um falsche Informationen darzustellen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260311Security Bulletin 11 Mar 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 11 Mar 2026, published on 11 March 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0273Multiples vulnérabilités dans Microsoft Azure

De multiples vulnérabilités ont été découvertes dans Microsoft Azure. Elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-007187マイクロソフトのAzure IoT Explorerにおける意図するエンドポイントとの通信チャネルの制限に関する脆弱性

Azure IoT Explorerにおける通信チャネルが意図されたエンドポイントに適切に制限されていないため、未承認の攻撃者がネットワーク上で情報を漏洩させる可能性があります。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6724MS 3월 보안 위협에 따른 정기 보안 업데이트 권고

lient File System (ReFS) | CVE-2026-23673 | Windows ReFS(복원 파일 시스템) 권한 상승 취약성 | | Windows Universal Disk Format File System Driver (UDFS) | CVE-2026-23672 | Windows 범용 디스크 형식 파일 시스템 드라이버(UDFS) 권한 상승 취약성 | | Windows Bluetooth RFCOM Protocol Driver | CVE-2026-23671 | Windows Bluetooth RFCOM 프로토콜 드라이버 권한 상승 취약성 | | Windows Print Spooler Components | CVE-2026-23669 | Windows 인쇄 스풀러 원격 코드 실행 취약성 | | Microsoft Graphics Component | CVE-2026-23668 | Windows 그래픽 구성 요소 권한 상승 취약성 | | Broadcast DVR | CVE-2026-23667 | 브로드캐스트 DVR 권한 상승 취약성 | | Azure Linux Virtual Machines | CVE-2026-23665 | Linux Azure Diagnostic 확장(LAD) 권한 상승 취약성 | | Azure IoT Explorer | CVE-2026-23664 | Azure IoT Explorer 정보 공개 취약성 | | Azure IoT Explorer | CVE-2026-23662 | Azure IoT Explorer 정보 공개 취약성 | | Azure IoT Explorer | CVE-2026-23661 | Azure IoT Explorer 정보 공개 취약성 | | Azure Portal Windows Admin Center | CVE-2026-23660 | Azure Portal 내 Windows Admin Center 권한 상승 취약성 | | Windows App Installer | CVE-2026-23656 | Windows 앱 설치 관리자 스푸핑 취약성 | | GitHub Repo: zero-shot-scfoundation | CVE-2026-23654 | GitHub: 제로 샷 SCFoundation 원격 코드 실행 취약성 | | Azure Compute Gallery | CVE-2026-23651 | Microsoft ACI 기밀 컨테이너 권한 상승 취약성 | | Microsoft Devices Pricing Program | CVE-2026-21536 | Microsoft 장치 가격 책정 프로그램 원격 코드 실행 취약성 | | Microsoft Teams | CVE-2026-215

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0082Kwetsbaarheden verholpen in Microsoft Azure

Een kwadwillende kan de kwetsbaarheden misbruiken om zich voor te doen als andere gebruiker, zich verhoogde rechten toe te kennen of toegang te krijgen tot gevoelige gegevens. ``` Azure Entra ID: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26148 | 8.10 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure IoT Explorer: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-23664 | 7.50 | Toegang tot gevoelige gegevens | | CVE-2026-26121 | 7.50 | Voordoen als andere gebruiker | | CVE-2026-23661 | 7.50 | Toegang tot gevoelige gegevens | | CVE-2026-23662 | 7.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Azure Portal Windows Admin Center: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-23660 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Compute Gallery: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-23651 | 6.70 | Verkrijgen van verhoogde rechten | | CVE-2026-26124 | 6.70 | Verkrijgen van verhoogde rechten | | CVE-2026-26122 | 6.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Azure MCP Server: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26118 | 8.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Linux Virtual Machines: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-23665 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Windows Virtual Machine Agent: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26117 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Arc: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26141 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| ```

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Azure IoT Explorer: 1.0.0 < 0.15.13
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 10 Mar 2026 · Last source change 19 Jun 2026, 18:17 UTC · CWE-923 · Improper Restriction of Communication Channel to Intended Endpoints

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-10585
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-10585↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-23664 · cve.blacktree.nl