CVE-2026-59117 Windows Terminal Remote Code Execution Vulnerability
An integer overflow in Windows Terminal allows remote attackers to execute arbitrary code over the network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-59117?
CVE-2026-59117 is a high-severity vulnerability in Microsoft Windows Terminal App, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code over a network.
Weakness: CWE-190
Which versions are affected by CVE-2026-59117?
It affects 1 product.
Products include Microsoft Terminal.
How do I fix CVE-2026-59117?
No fix has been published for CVE-2026-59117 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59117 being exploited?
There is no known exploitation of CVE-2026-59117 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Terminal App
Sources
Also known as GHSA-g52r-hw2c-c98r.