CVE-2026-20857
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk38th percentile - higher than 38% of all known CVEs
Summary
An untrusted pointer dereference in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could compromise cloud file system integrity, leading to privilege escalation and data access.
Recommendation
Install the latest Windows security updates from Microsoft.
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-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-2026-62771High
Heap-based buffer overflow in the Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-62713High
Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-58613High
A use-after-free vulnerability in the Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-58536High
Use-After-Free vulnerability in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-50401Medium
Out-of-bounds read in Windows Cloud Files Mini Filter Driver allows an authorized attacker to disclose information locally.
Original NVD description (English source)
Untrusted pointer dereference in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.