CVE-2025-55690CWE-416

CVE-2025-55690

High · published October 14, 2025

CVSS v3.1
7.0
EPSS
0%
Percentile
25.9
In the wild
Unconfirmed
What it is

⚡ A crafty use after free in Windows PrintWorkflowUserSvc can let an authorized attacker elevate their privileges! 🚨 Think of it like a restaurant where a server accidentally gives the wrong key to the employees' lounge, allowing anyone with access to waltz in and enjoy all the perks. This flaw means that an attacker could gain unauthorized control over sensitive functions, just because they already had a foot in the door! An attacker with local access could elevate their privileges and potentially take over sensitive components of the system. This could lead to unauthorized access to critical data or system controls, making it a high-stakes situation!

Put simply

Think of it like a restaurant where a server accidentally gives the wrong key to the employees' lounge, allowing anyone with access to waltz in and enjoy all the perks. This flaw means that an attacker could gain unauthorized control over sensitive functions, just because they already had a foot in the door! This use after free vulnerability allows an attacker to exploit memory management flaws in the Windows PrintWorkflowUserSvc service, enabling them to escalate their privileges unexpectedly.

What to do

An attacker with local access could elevate their privileges and potentially take over sensitive components of the system. This could lead to unauthorized access to critical data or system controls, making it a high-stakes situation! To safeguard against this threat, ensure you apply the latest security patches for Windows that address this vulnerability. Regularly review user access rights and limit permissions to only those who absolutely need them. Additionally, consider implementing monitoring for any unusual privilege escalations. You've got this! Follow these steps, and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00337 · 25.9th percentile
Weakness
CWE-416 · Use After Free
Published
2025-10-14T21:15Z
Affected products (3)
ProductVersionsFixed in
microsoft/windows_11_24h2< 10.0.26100.689910.0.26100.6899
microsoft/windows_11_25h2< 10.0.26200.689910.0.26200.6899
microsoft/windows_server_2025< 10.0.26100.689910.0.26100.6899
References (1)
EPSS history
Timeline
  • 14 OCT 17:01Z
    Windows PrintWorkflowUserSvc Elevation of Privilege Vulnerability
    cvelistv5