CVE-2026-54124: Windows Terminal Remote Code Execution Vulnerability
Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally.
Other sources
Windows Terminal Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2525Patch KB5101649 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 1.24.11321.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-54124?
The severity of CVE-2026-54124 is rated high with a score of 7.8.
What systems are affected by CVE-2026-54124?
CVE-2026-54124 affects Microsoft Windows 10, Windows 11, Windows Server 2022, Windows Server 2025, and Windows Terminal for both Windows 10 and Windows 11.
How can I fix CVE-2026-54124?
To fix CVE-2026-54124, ensure that you update your affected Windows Terminal and operating system to the latest security patches released by Microsoft.
What type of vulnerability is CVE-2026-54124?
CVE-2026-54124 is classified as an integer overflow vulnerability leading to remote code execution.
What is the impact of CVE-2026-54124?
The impact of CVE-2026-54124 is that an unauthorized attacker may execute code locally on affected systems.