


Perceptive Security
SOC/SIEM Consultancy

Microsoft Windows Cloud Files Mini Filter Driver contains a use after free vulnerability that can allow an authorized attacker to elevate privileges locally.
Published:
9 December 2025 at 00:00:00
Alert date:
9 December 2025 at 20:01:36
Source:
cisa.gov
Microsoft Windows Cloud Files Mini Filter Driver contains a use after free vulnerability (CVE-2025-62221) that enables privilege escalation for authorized attackers with local access. The vulnerability affects the Windows Cloud Files Mini Filter Driver component and allows attackers to elevate their privileges on the local system. This represents a significant security risk as it can be exploited by users who already have some level of access to escalate to higher privilege levels.
Technical details
Mitigation steps:
Affected products:
Microsoft Windows Cloud Files Mini Filter Driver
Related links:
https://nvd.nist.gov/vuln/detail/CVE-2025-62221
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-62221
Related CVE's:
Related threat actors:
IOC's:
This article was created with the assistance of AI technology by Perceptive.
