Microsoft Windows Produkte: Mehrere Schwachstellen
WID-SEC-2026-2316 · first 15.07.2026 · updated 07.09.2026 · CVSS 9,9
What it is about
Windows ist ein Betriebssystem von Microsoft. Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Produkten ausnutzen, um seine Privilegien zu erhöhen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um falsche Informationen darzustellen, um Daten zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.
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
- seine Privilegien zu erhöhen
- beliebigen Programmcode auszuführen
- einen Denial of Service Angriff durchzuführen
- Informationen offenzulegen
- falsche Informationen darzustellen
- Daten zu manipulieren
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Hitachi Storage
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2016
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Microsoft Windows Server 2022
- Microsoft Windows 10 Version 21H2
- Microsoft Windows 10 Version 22H2
- Microsoft Windows 11 Version 23H2
- Microsoft Windows Server 2025
and 5 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?
- CVE-2026-56155: exploited in the wild according to CISA, in the catalogue since 14.07.2026.
Information and sources
- Original BSI advisory (WID)
- Microsoft Leitfaden für Sicherheitsupdates msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50347 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50312 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50321 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50370 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50419 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50341 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50380 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50330 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50313 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50368 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50390 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50309 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50304 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50386 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49790 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49791 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49794 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49796 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49797 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49798 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49799 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50308 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50311 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-49804 msrc.microsoft.com
and 397 more sources in the original advisory
CVE: CVE-2026-33842, CVE-2026-34328, CVE-2026-34346, CVE-2026-34348, CVE-2026-34349, CVE-2026-40378, CVE-2026-40400, CVE-2026-40422, CVE-2026-41087, CVE-2026-42900, CVE-2026-42975, CVE-2026-42982, CVE-2026-42990, CVE-2026-44800, CVE-2026-44806, CVE-2026-47301, CVE-2026-48564, CVE-2026-48571, CVE-2026-48572, CVE-2026-49162 …
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.