Threat landscape
critical

Microsoft Azure, Entra ID und Exchange: Mehrere Schwachstellen

WID-SEC-2026-2951 · first 21.08.2026 · updated 16.10.2026 · CVSS 10,0

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What it is about

Azure ist eine Cloud Computing-Plattform von Microsoft. Microsoft Copilot ist ein KI-Assistent, der in verschiedene Microsoft-Produkte integriert werden kann. Microsoft Entra ID (früher Azure Active Directory) ist ein cloudbasierter Identitäts- und Zugriffsverwaltungsdienst von Microsoft. Exchange ist ein Groupware und Nachrichtensystem der Firma Microsoft. Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure, Microsoft Entra ID und Microsoft Exchange Online ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern oder vertrauliche Informationen offenzulegen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

  • beliebigen Code auszuführen
  • Berechtigungen zu erweitern oder vertrauliche Informationen offenzulegen

Am I affected?

Affected according to the BSI:

  • Microsoft Azure Data Factory
  • Microsoft Azure Web Apps
  • Microsoft Azure SQL Database
  • Microsoft Azure Logic Apps
  • Microsoft Azure Virtual Machines
  • Microsoft Azure ARC
  • Microsoft Azure Stack HCI
  • Microsoft Azure Managed Instance for Apache Cassandra
  • Microsoft Azure Data Manager for Energy
  • Microsoft 365 Copilot in Azure
  • Microsoft Entra ID
  • Microsoft Exchange Online

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Install the updates provided by the vendor; details in the sources below.

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.

Information and sources

CVE: CVE-2026-62834, CVE-2026-65770, CVE-2026-65816, CVE-2026-66309, CVE-2026-66800, CVE-2026-68782, CVE-2026-68789, CVE-2026-69400, CVE-2026-69419, CVE-2026-69502, CVE-2026-69519, CVE-2026-69543, CVE-2026-69555, CVE-2026-69855, CVE-2026-69851, CVE-2026-69836, CVE-2026-65801

Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.

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