CVE-2026-20408CWE-122

In wlan, there is a possible out of bounds write due to a heap buffer overflow

High · published February 2, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
21.4
In the wild
Unconfirmed
What it is

⚡ A sneaky heap buffer overflow is the culprit here, allowing remote privilege escalation with zero user interaction! Think of it like a sneaky delivery person dropping off packages right through a tiny gap in the fence without needing a key — they can access your backyard before you even know it! An attacker could exploit this vulnerability to gain elevated privileges on the system, which means they could bypass security controls and gain access to sensitive data or even control the system itself. This could lead to absolutely devastating consequences for your network security!

Put simply

Think of it like a sneaky delivery person dropping off packages right through a tiny gap in the fence without needing a key — they can access your backyard before you even know it! This vulnerability in wlan allows for an out-of-bounds write due to a heap buffer overflow, enabling an attacker to escalate privileges without needing additional execution rights or user interaction.

What to do

An attacker could exploit this vulnerability to gain elevated privileges on the system, which means they could bypass security controls and gain access to sensitive data or even control the system itself. This could lead to absolutely devastating consequences for your network security! Patch immediately with ID WCNCR00461651 to secure your system. Review your configuration for any affected components to limit potential exposure. Stay vigilant and monitor your environment for unusual activities! You've got this! With the right patch and vigilance, you'll keep your system secure and maintain your superhero status! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00299 · 21.4th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-02-02T08:14Z
EPSS history
Timeline
  • 02 FEB 08:14Z
    In wlan, there is a possible out of bounds write due to a heap buffer overflow
    cvelistv5