CVE-2026-21246CWE-122

Windows Graphics Component Elevation of Privilege Vulnerability

High · published February 10, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
37.7
In the wild
Unconfirmed
What it is

⚡ A heap-based buffer overflow lurking in the Microsoft Graphics Component could let attackers boost their privileges with just a few crafty commands! Think of it like a sneaky guest who finds a way to access the VIP lounge at a concert, using a backdoor pass that should never be theirs. This vulnerability allows an authorized user to escalate their permissions, just as the guest could mingle with the stars! If exploited, an attacker could gain elevated privileges, which means they could potentially gain control over critical system functions, manipulate sensitive data, or install malicious software. Imagine someone getting backstage access and wreaking havoc — that's the level of chaos this could unleash!

Put simply

Think of it like a sneaky guest who finds a way to access the VIP lounge at a concert, using a backdoor pass that should never be theirs. This vulnerability allows an authorized user to escalate their permissions, just as the guest could mingle with the stars! The vulnerability in the Microsoft Graphics Component allows an attacker with valid credentials to exploit a buffer overflow in the memory heap, resulting in unauthorized access to elevated privileges.

What to do

If exploited, an attacker could gain elevated privileges, which means they could potentially gain control over critical system functions, manipulate sensitive data, or install malicious software. Imagine someone getting backstage access and wreaking havoc — that's the level of chaos this could unleash! To mitigate this risk, it's essential to patch the Microsoft Graphics Component to the latest version as soon as possible. Regularly review user permissions and implement strict access controls to limit potential exploitation. Don't forget to monitor your systems for any unusual activities! You've got this! With these steps, you'll be locking down your systems and keeping those sneaky attackers at bay! 🛡️

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
0.00446 · 37.7th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-02-10T17:51Z
EPSS history
Timeline
  • 10 FEB 17:51Z
    Windows Graphics Component Elevation of Privilege Vulnerability
    cvelistv5