CVEvulnerability

CVE-2025-62221

7.8 HIGH Known exploited Published 2025-12-09 Modified 2026-09-25 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Windows Use After Free Vulnerability — Microsoft Windows

Microsoft Windows Cloud Files Mini Filter Driver contains a use after free vulnerability that can allow an authorized attacker to elevate privileges locally.

Added to KEV
2025-12-09
Remediation due
2025-12-30
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-62221 ; https://nvd.nist.gov/vuln/detail/CVE-2025-62221
Status
Analyzed
Published
2025-12-09
Last modified
2026-09-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

Description

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Affected configurations

• microsoft windows 10 1809 (< 10.0.17763.8146) • microsoft windows 10 21h2 (< 10.0.19044.6691) • microsoft windows 10 22h2 (< 10.0.19045.6691) • microsoft windows 11 23h2 (< 10.0.22631.6345) • microsoft windows 11 24h2 (< 10.0.26100.7392) • microsoft windows 11 25h2 (< 10.0.26200.7392) • microsoft windows server 2019 (< 10.0.17763.8146) • microsoft windows server 2022 (< 10.0.20348.4467) • microsoft windows server 2022 23h2 (< 10.0.25398.2025) • microsoft windows server 2025 (< 10.0.26100.7392)

Related

Weakness · CWE (1)

References