CVE-2016-0165KEV · OVERDUE

Microsoft Win32k Privilege Escalation Vulnerability

High · published April 12, 2016

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 96.5th percentile for exploit probability.

1197
days past CISA
deadline
CVSS v3.1
7.8
EPSS
14%
Percentile
96.5
In the wild
Confirmed
What it is

🚨 Local users could craft an app to elevate their privileges on multiple Windows versions—talk about a sneaky way to gain access! ⚡ Think of it like a restaurant worker using a fake staff ID to access the kitchen and help themselves to the chef's secret ingredients—accessing things they shouldn't just because they managed to bypass the front desk! If exploited, an attacker could gain unauthorized access to sensitive system resources, effectively allowing them to control the system like a puppet master pulling the strings. This could lead to data breaches, system tampering, or even more severe consequences, threatening the overall integrity of the system.

Put simply

Think of it like a restaurant worker using a fake staff ID to access the kitchen and help themselves to the chef's secret ingredients—accessing things they shouldn't just because they managed to bypass the front desk! This vulnerability resides in the kernel-mode driver of various Windows operating systems and allows local users to escalate their privileges through a specially crafted application, bypassing the restrictions typically placed on their accounts.

What to do

If exploited, an attacker could gain unauthorized access to sensitive system resources, effectively allowing them to control the system like a puppet master pulling the strings. This could lead to data breaches, system tampering, or even more severe consequences, threatening the overall integrity of the system. To protect your systems, ensure that all affected Windows versions are updated to the latest patches provided by Microsoft. Regularly audit user permissions and restrict local access where necessary. Always monitor for unusual activity that could indicate exploitation. You’ve got this! Secure your systems by taking these steps, and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.13732 · 96.5th percentile
Published
2016-04-12T23:00Z
KEV added
2023-06-22 · due 2023-07-13
EPSS history
Timeline
  • 22 JUN 00:00Z
    Added to CISA KEV — remediate by Jul 13
    kev
  • 12 APR 23:00Z
    The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows…
    cvelistv5