CVE-2026-83991
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
Missing authentication for critical function in Windows Cloud Files Mini Filter Driver allows an authorized attacker to perform tampering locally.
Risk Assessment
The risk involves the possibility of unauthorized modification of cloud files or data, which could lead to data integrity compromise.
Recommendation
It is recommended to install the latest Windows security updates that address this vulnerability.
Other vulnerabilities in Windows Cloud Files Mini Filter Driver
See all- CVE-2026-35418High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-34337High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-33835High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2020-17103High
A vulnerability in the Windows Cloud Files Mini Filter Driver allows for elevation of privilege. An attacker can exploit this flaw to gain higher privileges on the system.
- CVE-2025-62221HighActively exploited
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2024-30085High
A vulnerability in the Windows Cloud Files Mini Filter Driver allows elevation of privilege. The flaw stems from improper input validation, potentially enabling an attacker to execute code in kernel context.
- CVE-2023-36036HighActively exploited
An elevation of privilege vulnerability in the Windows Cloud Files Mini Filter Driver. It may allow an attacker to gain higher privileges on the system.
- CVE-2026-88107High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-88106High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-83696High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Missing authentication for critical function in Windows Cloud Files Mini Filter Driver allows an authorized attacker to perform tampering locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS