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MEDIUM · 5.5

CVE-2026-45604

Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.

Vulnerability Description

Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.

CVSS Score

5.5

MEDIUM

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

Affected Products

VendorProductVersions
MicrosoftWindows 11 23H2< 10.0.22631.7219
MicrosoftWindows 11 24H2< 10.0.26100.8655
MicrosoftWindows 11 25H2< 10.0.26200.8655
MicrosoftWindows 11 26H1< 10.0.28000.2269
MicrosoftWindows Server 2025< 10.0.26100.32995

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2026-45604?

CVE-2026-45604 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.

How severe is CVE-2026-45604?

CVE-2026-45604 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45604?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 23H2, Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1, Microsoft Windows Server 2025.