Threat landscape
high

Microsoft Azure Linux: Mehrere Schwachstellen

WID-SEC-2025-2563 · first 12.11.2025 · updated 12.05.2026 · CVSS 8,8

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What it is about

Microsoft Azure Linux ist eine von Microsoft entwickelte Linux-Distribution, die für die Ausführung von Workloads in der Azure-Cloud optimiert ist. Windows ist ein Betriebssystem von Microsoft. Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure Linux und Microsoft Windows ausnutzen um erhöhte Privilegien zu erlangen, beliebigen Code auszuführen, die Authentifizierung zu umgehen, Spoofing-Angriffe durchzuführen, einen Denial-of-Service-Zustand zu verursachen oder andere, nicht näher spezifizierte Angriffe durchzuführen.

Under what conditions?

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

Am I affected?

Affected according to the BSI:

  • Fedora Linux
  • SUSE Linux
  • Microsoft Azure Linux azl3 nghttp2 1.61.0-2 on 3.0
  • Microsoft Azure Linux azl3 libarchive 3.7.7-3 on 3.0
  • Microsoft Azure Linux azl3 kernel 6.6.104.2-4 on 3.0
  • Microsoft Azure Linux azl3 curl 8.11.1-4 on 3.0
  • Microsoft Azure Linux azl3 cmake 3.30.3-10 on 3.0
  • Microsoft Windows Subsystem for Linux GUI
  • Microsoft Azure Linux azl3 mysql 8.0.44-2 on 3.0
  • Microsoft Azure Linux azl3 libxml2 2.11.5-7 on 3.0
  • Microsoft Azure Linux azl3 rust 1.75.0-21 on 3.0
  • Microsoft Azure Linux azl3 containerd2 2.0.0-14 on 3.0

and 4 more

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-2024-25621, CVE-2025-10966, CVE-2025-12863, CVE-2025-12875, CVE-2025-31133, CVE-2025-40107, CVE-2025-40109, CVE-2025-52565, CVE-2025-52881, CVE-2025-60753, CVE-2025-62220, CVE-2025-64329, CVE-2025-64432, CVE-2025-64433, CVE-2025-64434, CVE-2025-64435, CVE-2025-64436, CVE-2025-64437

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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