What is CVE-2026-59117?

CVE-2026-59117 is a high-severity vulnerability in Microsoft Windows Terminal App, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-07-16.

How severe is CVE-2026-59117?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Microsoft Windows Terminal App

CVE-2026-59117

Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code over a network.

Vulnerability class: Integer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Microsoft Windows Terminal App

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-59117?: CVE-2026-59117 is a high-severity vulnerability in Microsoft Windows Terminal App, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-07-16.
How severe is CVE-2026-59117?: High severity. CVSS v3 base score is 7.5 out of 10.