Description

Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

Classification

CVE ID: CVE-2025-29970

CVSS Base Severity: HIGH

CVSS Base Score: 7.8

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected Products

Vendor: Microsoft

Product: Windows Server 2025 (Server Core installation), Windows Server 2022, 23H2 Edition (Server Core installation), Windows 11 Version 24H2, Windows Server 2025

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 15.15% (scored less or equal to compared to others)

EPSS Date: 2025-06-04 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-29970
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29970

Timeline