CVE-2025-62454CWE-122

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

High · published December 9, 2025

CVSS v3.1
7.8
EPSS
2%
Percentile
83.1
In the wild
Unconfirmed
What it is

⚡ A sneaky heap-based buffer overflow in Windows could let an authorized attacker elevate their privileges — it’s like letting a VIP into the backstage area without a proper check! Think of this vulnerability like a restaurant where a diner with a regular table suddenly gets access to the kitchen just because they whispered the right password. Without proper restrictions, they could cause chaos behind the scenes! This flaw allows attackers with existing access on the system to gain higher privileges, potentially wreaking havoc by accessing sensitive data, changing configurations, or installing malicious software. The consequences could be devastating, leading to a complete system compromise.

Put simply

Think of this vulnerability like a restaurant where a diner with a regular table suddenly gets access to the kitchen just because they whispered the right password. Without proper restrictions, they could cause chaos behind the scenes! The heap-based buffer overflow in the Windows Cloud Files Mini Filter Driver occurs when the system fails to properly manage memory allocation, allowing an attacker with local access to overwrite critical memory space.

What to do

This flaw allows attackers with existing access on the system to gain higher privileges, potentially wreaking havoc by accessing sensitive data, changing configurations, or installing malicious software. The consequences could be devastating, leading to a complete system compromise. To safeguard against this vulnerability, ensure your Windows system is updated to the latest version by applying security patches. Regularly audit user permissions to minimize unauthorized access, and consider implementing stricter access controls. You’ve got this! By staying proactive and patching up, you’re one step closer to being a security hero! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
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
CVSS v4.0
Not supplied
EPSS
0.02293 · 83.1th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2025-12-09T17:55Z
EPSS history
Timeline
  • 09 DEC 17:55Z
    Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
    cvelistv5