CVE-2025-55701CWE-1287

Windows Authentication Elevation of Privilege Vulnerability

High · published October 14, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
33.6
In the wild
Unconfirmed
What it is

⚡ An authorized attacker can elevate privileges locally, making this flaw a potential gateway to unauthorized power! 🔥 Think of this as a hotel where someone with a regular room key can suddenly access the penthouse suite. The internal security checks just didn't validate the keyholder’s claims, allowing them to roam freely where they shouldn't! If exploited, this vulnerability could allow an attacker to gain administrative privileges, granting them the ability to install malicious software, access sensitive data, and completely take control of the system. The risks are substantial—this could lead to devastating breaches and unauthorized access to critical resources!

Put simply

Think of this as a hotel where someone with a regular room key can suddenly access the penthouse suite. The internal security checks just didn't validate the keyholder’s claims, allowing them to roam freely where they shouldn't! CVE-2025-55701 arises from improper validation of input types in Microsoft Windows, enabling an attacker with local access to elevate their privileges beyond what they should rightfully have. This oversight in validation checks creates a reliable path for privilege escalation.

What to do

If exploited, this vulnerability could allow an attacker to gain administrative privileges, granting them the ability to install malicious software, access sensitive data, and completely take control of the system. The risks are substantial—this could lead to devastating breaches and unauthorized access to critical resources! To mitigate this risk, ensure your systems are patched to the latest version provided by Microsoft. Regularly review user access levels and implement strict access controls to minimize the potential impact of this vulnerability. It's also wise to monitor for any unusual activity that might indicate an exploit attempt. You've got this! Follow these steps to secure your systems and keep your digital fortress strong! 🛡️

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
0.00405 · 33.6th percentile
Weakness
CWE-1287 · Improper Validation of Specified Type of Input
Published
2025-10-14T17:00Z
EPSS history
Timeline
  • 14 OCT 17:00Z
    Windows Authentication Elevation of Privilege Vulnerability
    cvelistv5