CVE-2025-49730: Microsoft Windows QoS Scheduler Driver Elevation of Privilege Vulnerability
Published Jul 8, 2025
·Updated
Microsoft Windows QoS Scheduler Driver Elevation of Privilege Vulnerability
Other sources
Time-of-check time-of-use (toctou) race condition in Microsoft Windows QoS scheduler allows an authorized attacker to elevate privileges locally.
— Microsoft
Affected Software
58 affected componentsFixes available
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012
Microsoft Windows Server 2012
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2008
Microsoft Windows Server 2008
Microsoft Windows Server 2008
Microsoft Windows Server 2016
Microsoft Windows Server 2016
Microsoft Windows 10=1607
Microsoft Windows 10
Microsoft Windows 10=1607
Microsoft Windows 10
Microsoft Windows 11=24H2
Microsoft Windows Server 2022, 23H2 Edition
Microsoft Windows 11=24H2
Microsoft Windows 11=23H2
Microsoft Windows Server 2025
Microsoft Windows 11=23H2
Microsoft Windows Server 2025
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 11=22H2
Microsoft Windows 11=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows Server 2019
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows Server 2019
Microsoft Windows 10 1507<10.0.10240.21073
Microsoft Windows 10 1507<10.0.10240.21073
Microsoft Windows 10 1607<10.0.14393.8246
Microsoft Windows 10 1607<10.0.14393.8246
Microsoft Windows 10 1809<10.0.17763.7558
Microsoft Windows 10 1809<10.0.17763.7558
Microsoft Windows 10 21h2<10.0.19044.6093
Microsoft Windows 10 22h2<10.0.19045.6093
Microsoft Windows 11 22h2<10.0.22621.5624
Microsoft Windows 11 23h2<10.0.22631.5624
Microsoft Windows 11 24h2<10.0.26100.4652
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.8246
Microsoft Windows Server 2019<10.0.17763.7558
Microsoft Windows Server 2022<10.0.20348.3932
Microsoft Windows Server 2022 23h2<10.0.25398.1732
Microsoft Windows Server 2025<10.0.26100.4652
Event History
Jul 8, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Description
Updated
via Microsoft·07:00 AM
Affected Software
CVE Published
via MITRE·04:58 PM
Data Sourced
via MITRE·04:58 PM
DescriptionSeverity
Data Sourced
via NVD·05:16 PM
DescriptionSeverityWeaknessAffected Software
Aug 11, 2025
Exploit Published
12:00 AM
Known Exploited
07:00 PM
Frequently Asked Questions
1
What is the severity of CVE-2025-49730?
CVE-2025-49730 has a critical severity rating due to its potential for local privilege escalation.
2
How do I fix CVE-2025-49730?
To remediate CVE-2025-49730, apply the relevant security updates provided by Microsoft.
3
What systems are affected by CVE-2025-49730?
CVE-2025-49730 affects multiple Microsoft Windows Server and Windows 10 versions.
4
What type of vulnerability is CVE-2025-49730?
CVE-2025-49730 is a time-of-check time-of-use (TOCTOU) race condition vulnerability.
5
Can CVE-2025-49730 be exploited remotely?
CVE-2025-49730 cannot be exploited remotely as it requires local access to the system.