CVE-2025-24994: Microsoft Windows Cross Device Service Elevation of Privilege Vulnerability

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-11 · updated 2026-06-17
Weakness: CWE-284

Description

Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.

Affected products

Microsoft Windows 11: before 10.0.22621.5039 — fixed in 10.0.22621.5039
Microsoft Windows 11: before 10.0.22631.5039 — fixed in 10.0.22631.5039
Microsoft Windows 11: before 10.0.26100.3403 — fixed in 10.0.26100.3403
Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.5039 — fixed in 10.0.22621.5039
Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.5039 — fixed in 10.0.22631.5039
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.5039 — fixed in 10.0.22631.5039
Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.3476 — fixed in 10.0.26100.3476

How to fix

Upgrade to a fixed version: Microsoft Windows 11 10.0.22621.5039; Microsoft Windows 11 10.0.22631.5039; Microsoft Windows 11 10.0.26100.3403; Microsoft Windows 11 10.0.22621.5039; Microsoft Windows 11 version 22H3 10.0.22631.5039; Microsoft Windows 11 10.0.22631.5039; Microsoft Windows 11 10.0.26100.3476. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24994

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