CVE tracker / CVE-2025-49693
CVE-2025-49693
CVE-2025-49693 is the Microsoft Brokering File System Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published July 8, 2025.
Risk summary
HighElevation of Privilege
7.8
CVSS v3 base
0.4%
EPSS: chance of exploitation in 30 days
High
Severity
Important
Microsoft's rating
Less Likely
Microsoft: exploitation
No
In CISA KEV
Microsoft describes it: “Double free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.”
How to fix it
Microsoft lists 9 affected products and the update that fixes each:
- KB5062552 · fixed build 10.0.22631.5624, 10.0.22621.5624
Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 22H2 for x64-based Systems, Windows 11 Version 22H2 for ARM64-based Systems - KB5062553 · fixed build 10.0.26100.4652
Windows Server 2025, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows Server 2025 (Server Core installation) - KB5062570 · fixed build 10.0.25398.1732
Windows Server 2022, 23H2 Edition (Server Core installation)
What Microsoft changed
- July 8, 2025: Information published.
Details
- Weakness
- CWE-415: Double Free
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- July 8, 2025
- Last revised
- July 8, 2025
Get told when this changes
Senserva Watch emails Microsoft security and patch alerts when something moves: a new exploitation report, a revised fix, a known issue. Free, one email address.
References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.