CVE-2025-20683CWE-787

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check

Critical · published July 8, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
46.8
In the wild
Unconfirmed
What it is

🚨 An incorrect bounds check in the wlan AP driver opens the door for a local privilege escalation — think of it as a delivery person slipping into VIP access without a proper invite! 🔥 Imagine a hotel with a secret stairwell that leads to the penthouse. If a guest can sneak in past the front desk without getting checked, they could unlock exclusive areas. This vulnerability allows a user with normal execution privileges to gain higher-level access without any user interaction required! This is absolutely devastating! An attacker could exploit this flaw to escalate their privileges and gain control over sensitive parts of the system, potentially allowing them to install malicious software, access confidential information, or disrupt critical operations. It's a serious risk that demands immediate attention!

Put simply

Imagine a hotel with a secret stairwell that leads to the penthouse. If a guest can sneak in past the front desk without getting checked, they could unlock exclusive areas. This vulnerability allows a user with normal execution privileges to gain higher-level access without any user interaction required! The vulnerability stems from an out-of-bounds write in the wlan AP driver, where an improper bounds check allows local users to overwrite memory regions they shouldn't be able to, leading to potential privilege escalation.

What to do

This is absolutely devastating! An attacker could exploit this flaw to escalate their privileges and gain control over sensitive parts of the system, potentially allowing them to install malicious software, access confidential information, or disrupt critical operations. It's a serious risk that demands immediate attention! To remediate this flaw, immediately apply the patch identified as WCNCR00416938. Review your systems to ensure the wlan AP driver is updated to the latest version, and regularly audit your security protocols to prevent similar vulnerabilities from arising in the future. You've got this! Follow these steps, and you'll secure your system in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00577 · 46.8th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2025-07-08T02:00Z
EPSS history
Timeline
  • 08 JUL 02:00Z
    In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check
    cvelistv5