CVE-2026-54124

HIGH

Microsoft Windows 10 Version 21H2 - Windows Terminal Remote Code Execution Vulnerability

Title source: rule
STIX 2.1

Description

Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Windows Terminal Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54124

Scores

CVSS v3 7.8
EPSS 0.0043
EPSS Percentile 35.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-122 CWE-190
Status published
Products (20)
microsoft/terminal < 1.24.11321.0
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7548
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7548
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8875
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8875
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2269
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2525
Microsoft/Windows Server 2022 10.0.20348.0 - 10.0.20348.5386
Microsoft/Windows Server 2025 10.0.26100.0 - 10.0.26100.33158
Microsoft/Windows Server 2025 (Server Core installation) 10.0.26100.0 - 10.0.26100.33158
... and 10 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026