Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is required (UI:R). What is the target context of the remote code execution?
This attack requires a client to connect to a malicious server, and that could allow the attacker to gain code execution on the client.
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to have a deep understanding of the system. Successful exploitation is not guaranteed and depends on a combination of factors that might include the environment, system configuration, and the presence of additional security measures.
Security updates
1.24.11321.0 — https://github.com/microsoft/terminal/releases/#release-v1.24.11321.0
Vulnerabilities 1
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High 7.5
Windows Terminal Remote Code Execution Vulnerability
Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code over a network.
Revision history
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#2
Change the name of the affected software from **Microsoft Power Apps** to **Microsoft Power Apps Desktop Client**. This is an informational change only.
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#1
Information published.
References
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CVE-2026-59117 Windows Terminal Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59117
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss