CVE-2015-2546KEV · OVERDUECWE-119

Microsoft Win32k Memory Corruption Vulnerability

High · published September 9, 2015

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.2. It is confirmed in active exploitation. It sits in the 95.6th percentile for exploit probability.

1662
days past CISA
deadline
CVSS v3.1
8.2
EPSS
10%
Percentile
95.6
In the wild
Confirmed
What it is

⚡ A crafty application can lead local users to elevate their privileges on various Windows versions — just like finding an unguarded access panel in a secure building! 🔥 Think of your computer as a building with different levels of security. If a local user discovers a hidden access panel that lets them bypass security guards and enter restricted areas, they can mess with sensitive materials. This vulnerability is that sneaky panel! If exploited, a local user could gain elevated privileges, allowing them to make unauthorized changes, install malicious software, or even access sensitive data. This could lead to total chaos on the system, with attackers potentially taking full control without raising any alarms!

Put simply

Think of your computer as a building with different levels of security. If a local user discovers a hidden access panel that lets them bypass security guards and enter restricted areas, they can mess with sensitive materials. This vulnerability is that sneaky panel! CVE-2015-2546 is a kernel-mode driver vulnerability in Microsoft Windows that allows local users to execute crafted applications to gain higher system privileges, effectively bypassing security restrictions.

What to do

If exploited, a local user could gain elevated privileges, allowing them to make unauthorized changes, install malicious software, or even access sensitive data. This could lead to total chaos on the system, with attackers potentially taking full control without raising any alarms! To safeguard your systems, immediately apply the latest security updates from Microsoft for affected versions, such as Windows Vista, Windows 7, Windows 8, and Windows 10. Also, conduct a thorough audit of local user privileges to ensure no unauthorized access has occurred. You've got this! Stay proactive and secure your systems, and you'll keep those pesky intruders at bay! 🛡️

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.10107 · 95.6th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2015-09-09T04:59Z
KEV added
2022-03-15 · due 2022-04-05
Affected products (12)
ProductVersionsFixed in
microsoft/windows_10_1507all versions—
microsoft/windows_7all versions—
microsoft/windows_8all versions—
microsoft/windows_8.1all versions—
microsoft/windows_rtall versions—
microsoft/windows_rt_8.1all versions—
microsoft/windows_server_2008all versions—
microsoft/windows_server_2008all versions—
microsoft/windows_server_2008all versions—
microsoft/windows_server_2012all versions—
microsoft/windows_server_2012all versions—
microsoft/windows_vistaall versions—
References (7)
EPSS history
Timeline
  • 15 MAR 00:00Z
    Added to CISA KEV — remediate by Apr 5
    kev
  • 09 SEP 00:00Z
    The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and…
    cvelistv5