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Microsoft Loop, PowerBI, Teams Vulnerability Disclosure

Favicon for www.cert.ssi.gouv.fr CERT-FR Security Advisories
Published March 13th, 2026
Detected March 13th, 2026
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Summary

The French National Cybersecurity Agency (ANSSI) has issued a notice regarding a vulnerability (CVE-2026-26133) affecting Microsoft Loop, PowerBI, and Teams. The vulnerability can lead to data confidentiality breaches. Users are advised to consult Microsoft's security bulletin for patch information.

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What changed

The French National Cybersecurity Agency (ANSSI) has published a notice detailing a vulnerability, identified as CVE-2026-26133, affecting specific versions of Microsoft Loop, PowerBI, and Teams. This vulnerability poses a risk of data confidentiality breaches for users of these applications. The notice references Microsoft's security bulletin from March 12, 2026, as the primary source for remediation.

Organizations utilizing the affected Microsoft products should immediately consult the provided Microsoft security bulletin and apply the necessary patches or updates to mitigate the risk of data compromise. Failure to address this vulnerability could result in unauthorized access to sensitive information, impacting compliance with data protection regulations.

What to do next

  1. Consult Microsoft's security bulletin (CVE-2026-26133) for patch information.
  2. Apply necessary updates or patches to affected Microsoft Loop, PowerBI, and Teams versions.
  3. Assess potential data confidentiality risks and implement additional security measures if required.

Source document (simplified)

Premier Ministre S.G.D.S.N

Agence nationale
de la sécurité des
systèmes d'information

Paris, le 13 mars 2026 N° CERTFR-2026-AVI-0295 Affaire suivie par: CERT-FR

Avis du CERT-FR

Objet: Vulnérabilité dans les produits Microsoft

Gestion du document

| Référence | CERTFR-2026-AVI-0295 |
| Titre | Vulnérabilité dans les produits Microsoft |
| Date de la première version | 13 mars 2026 |
| Date de la dernière version | 13 mars 2026 |
| Source(s) | Bulletin de sécurité Microsoft CVE-2026-26133 du 12 mars 2026 |
Une gestion de version détaillée se trouve à la fin de ce document.

Risque

  • Atteinte à la confidentialité des données

Systèmes affectés

  • Microsoft Loop pour iOS versions antérieures à 2.106.26020617
  • Microsoft PowerBI pour Android versions antérieures à 2.2.260210.21290750
  • Microsoft PowerBI pour iOS versions antérieures à 1.2.260302.2193910
  • Microsoft Teams pour Android versions antérieures à 1.0.0.2026043102
  • Microsoft Teams pour iOS versions antérieures à 8.3.1

Résumé

Une vulnérabilité a été découverte dans les produits Microsoft. Elle permet à un attaquant de provoquer une atteinte à la confidentialité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Documentation

Gestion détaillée du document

  1. le 13 mars 2026 Version initiale

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Source

Favicon for www.cert.ssi.gouv.fr
CERT-FR Security Advisories cert.ssi.gouv.fr/avis
Vulnerability Alerts
Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
Various
Published
March 13th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Substantive

Who this affects

Applies to
Technology companies
Geographic scope
INT

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Topics
Data Privacy Software Vulnerabilities

Browse Categories

Federal Courts 26 State Courts 91 Securities Regulation 6 Financial Regulation 43 Consumer Protection 5 Drug Safety 45 Data Protection 21 Competition 2 Attorneys General 3 Insurance Regulation 5 Trade & Export 36 Legislation 42 Energy Regulation 13 Environment 3 Labor & Employment 2 Tax 1

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