CVE-2026-45604

Name: CVE-2026-45604
Creator: NVD / NIST
Published: 2026-06-09T17:17:29.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2026-45604 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.34%

25.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Microsoft	Windows 11 23h2	< 10.0.22631.7219
Microsoft	Windows 11 24h2	< 10.0.26100.8655
Microsoft	Windows 11 25h2	< 10.0.26200.8655
Microsoft	Windows 11 26h1	< 10.0.28000.2269
Microsoft	Windows Server 2025	< 10.0.26100.32995

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45604Vendor Advisory

Timeline

Published: Jun 9, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-45604?

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 a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-45604?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-45604?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST