CVE-2025-59193 Overview
CVE-2025-59193 is a race condition vulnerability in Windows Management Services that allows an authorized local attacker to elevate privileges. The flaw stems from concurrent execution using a shared resource without proper synchronization, classified under [CWE-362]. An attacker with low-privilege local access can win a timing window to gain higher privileges on the affected system. Microsoft published the advisory on October 14, 2025, and the issue affects multiple supported versions of Windows 10, Windows 11, and Windows Server.
Critical Impact
A successful exploit grants an authenticated local attacker elevated privileges, providing full impact to confidentiality, integrity, and availability of the target host.
Affected Products
- Microsoft Windows 10 (1809, 21H2, 22H2)
- Microsoft Windows 11 (22H2, 23H2, 24H2, 25H2)
- Microsoft Windows Server 2019, 2022, 2022 23H2, and 2025
Discovery Timeline
- 2025-10-14 - CVE-2025-59193 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-59193
Vulnerability Analysis
The vulnerability lives in Windows Management Services, a privileged component responsible for system management operations. Because the service accesses a shared resource without adequate locking, two threads can operate on that resource in an unsafe order. An attacker who runs code concurrently with the vulnerable code path can manipulate this window to influence privileged behavior. The result is local elevation of privilege from a standard authenticated user context to a higher-privileged context on the host.
Exploitation requires successful timing of concurrent operations, which raises attack complexity. However, once the race is won, the attacker gains full impact on confidentiality, integrity, and availability of the compromised endpoint.
Root Cause
The root cause is improper synchronization on a shared resource within Windows Management Services [CWE-362]. The code path performs a check followed by an action on the shared object without holding an appropriate lock across both operations. This produces a Time-of-Check to Time-of-Use (TOCTOU) condition, letting a second thread alter state between the validation and the privileged use.
Attack Vector
The attack vector is local and requires prior authenticated access to the target system. An attacker typically obtains such access through phishing, stolen credentials, or a prior foothold established by another payload. The attacker then executes a program that repeatedly triggers the vulnerable service operation while a companion thread races to modify the shared resource. When the race succeeds, the service performs the privileged action against attacker-controlled state.
No public proof-of-concept exploit is currently listed for CVE-2025-59193, and the vulnerability is not present in the CISA Known Exploited Vulnerabilities catalog. The EPSS probability at the time of writing is 0.178%.
Detection Methods for CVE-2025-59193
Indicators of Compromise
- Repeated, short-interval process creation from a single user context targeting Windows Management Services interfaces
- Unexpected child processes spawned by management service host processes (for example, svchost.exe hosting management-related services)
- New privileged accounts, scheduled tasks, or services created shortly after suspicious high-frequency process activity from a standard user
Detection Strategies
- Hunt for standard user sessions that suddenly execute processes with SYSTEM or administrative tokens without a corresponding elevation event
- Correlate high-rate thread creation and handle churn against Windows Management Services with subsequent privileged operations
- Monitor Windows Event Log IDs 4672 (special privileges assigned) and 4688 (process creation) for anomalous parent-child relationships tied to management service hosts
Monitoring Recommendations
- Baseline normal invocation patterns for Windows Management Services and alert on statistical anomalies in call frequency
- Enable command-line auditing and PowerShell script block logging to capture exploitation tooling launched after local elevation
- Forward endpoint telemetry to a centralized data lake to enable retroactive hunting once patch status across the fleet is known
How to Mitigate CVE-2025-59193
Immediate Actions Required
- Apply the Microsoft security update referenced in the Microsoft Security Update Guide for CVE-2025-59193 across all affected Windows 10, Windows 11, and Windows Server systems
- Prioritize patching for multi-user hosts, jump servers, and Remote Desktop Session Hosts where local users are most likely to attempt privilege escalation
- Audit local account membership and remove unnecessary interactive logon rights for standard users on sensitive systems
Patch Information
Microsoft has released fixes through the standard Windows Update channel. Refer to the Microsoft Security Update Guide for the exact KB numbers matching each affected build. Because the vulnerability spans nearly every supported Windows and Windows Server release, patch inventory should be validated against the CPE list published in the NVD entry.
Workarounds
- No official workaround is published by Microsoft; patching is the authoritative remediation path
- Reduce the number of accounts with local interactive access on servers and management hosts to shrink the attack surface
- Enforce application allowlisting to block unauthorized binaries that would be used to trigger the race condition
# Verify installed updates on a Windows host (PowerShell)
Get-HotFix | Sort-Object -Property InstalledOn -Descending | Select-Object -First 20
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
