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HIGH · 7.8

CVE-2026-54124

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

Vulnerability Description

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

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftTerminal< 1.24.11321.0
MicrosoftWindows 10 21H2< 10.0.19044.7548
MicrosoftWindows 10 22H2< 10.0.19045.7548
MicrosoftWindows 11 24H2< 10.0.26100.8875
MicrosoftWindows 11 25H2< 10.0.26200.8875
MicrosoftWindows 11 26H1< 10.0.28000.2269
MicrosoftWindows Server 2022< 10.0.20348.5386
MicrosoftWindows Server 2025< 10.0.26100.33158

Related Weaknesses (CWE)

CWE-122CWE-190

References

FAQ

What is CVE-2026-54124?

CVE-2026-54124 is a vulnerability with a CVSS score of 7.8 (HIGH). Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally.

How severe is CVE-2026-54124?

CVE-2026-54124 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-54124?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Terminal, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2, Microsoft Windows 11 24H2, Microsoft Windows 11 25H2.