Microsoft Windows Terminal, 365 Copilot, Github Copilot: Mehrere Schwachstellen
WID-SEC-2026-2320 · first 15.07.2026 · updated 15.07.2026 · CVSS 9,6
What it is about
Microsoft Windows Terminal ist eine Terminalanwendung für Windows-Betriebssysteme, die mehrere Befehlszeilen-Schnittstellen in einem einzigen Fenster vereint. Microsoft Copilot ist ein KI-Assistent, der in verschiedene Microsoft-Produkte integriert werden kann. Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Terminal, 365 Copilot und Github Copilotausnutzen, um beliebigen Programmcode auszuführen, um falsche Informationen darzustellen und um seine Privilegien zu erhöhen.
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 Programmcode auszuführen
- falsche Informationen darzustellen
- seine Privilegien zu erhöhen
Am I affected?
Affected according to the BSI:
- Microsoft Windows Terminal for Windows 10
- Microsoft Windows Terminal for Windows 11
- Microsoft 365 Copilot
- Microsoft 365 Copilot for iOS
- Microsoft 365 Copilot for Android
- Microsoft 365 Copilot Outlook
- Microsoft GitHub Copilot Plugin for JetBrains IDEs
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
- Original BSI advisory (WID)
- Microsoft Leitfaden für Sicherheitsupdates msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-54124 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-58595 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-50438 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-58636 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-41106 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-48561 msrc.microsoft.com
- Microsoft Security Advisory CVE-2026-58617 msrc.microsoft.com
CVE: CVE-2026-48561, CVE-2026-50438, CVE-2026-50510, CVE-2026-54124, CVE-2026-55145, CVE-2026-58595, CVE-2026-58617, CVE-2026-58636
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.