CVE-2015-2360KEV · OVERDUE

Microsoft Win32k Privilege Escalation Vulnerability

High · published June 10, 2015

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 96.7th percentile for exploit probability.

1591
days past CISA
deadline
CVSS v3.1
8.8
EPSS
15%
Percentile
96.7
In the wild
Confirmed
What it is

🚨 Local users can turn into superusers with just one crafted application! This Win32k vulnerability in multiple Windows versions is a serious threat. 🔥 Think of it like a hotel lobby where anyone can upgrade themselves to a penthouse suite just by showing a forged keycard — a nightmare for security! 🏨 If exploited, an attacker could gain elevated privileges, allowing them to install software, alter settings, or even cause a denial of service by corrupting memory. The consequences? Complete control over affected systems and potential chaos! ⚡

Put simply

Think of it like a hotel lobby where anyone can upgrade themselves to a penthouse suite just by showing a forged keycard — a nightmare for security! 🏨 This elevation of privilege vulnerability in win32k.sys allows local users to execute malicious applications that can manipulate kernel-mode operations, leading to memory corruption. This breach can enable attackers to escalate user privileges without adequate authorization.

What to do

If exploited, an attacker could gain elevated privileges, allowing them to install software, alter settings, or even cause a denial of service by corrupting memory. The consequences? Complete control over affected systems and potential chaos! ⚡ To safeguard your systems, patch immediately to the latest Windows updates that address this vulnerability. Additionally, restrict access to the system to trusted users only and implement application whitelisting to prevent the execution of unauthorized applications. 🛡️ You can tackle this! By following these steps, you'll bolster your defenses and keep your systems secure. You've got this! 🎉

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.14840 · 96.7th percentile
Published
2015-06-10T01:00Z
KEV added
2022-05-25 · due 2022-06-15
EPSS history
Timeline
  • 25 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 15
    kev
  • 10 JUN 01:00Z
    win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1…
    cvelistv5