Vulnerability · Published Jul 8, 2025 · Assigned by microsoft
CVE-2025-49677Microsoft Brokering File System Elevation of Privilege Vulnerability
High 7.0
In plain English
A high-severity use-after-free in Windows 11 version 22H2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Severity (CVSS 3.1)7.0High
Exploit odds (30 days)1.1%top 33.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.5624 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Microsoft Brokering File System Elevation of Privilege Vulnerability vendor-advisory, patch