CVE-2026-20465CWE-122

CVE-2026-20465

High · published August 3, 2026

CVSS v3.1

8.1

EPSS

Percentile

22.3

In the wild

Unconfirmed

What it is

In wlan AP driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00489200; Issue ID: MSV-7834.

The record

Technical detail

CVSS v3.1: 8.1 · HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0: Not supplied
EPSS: 0.00307 · 22.3th percentile
Weakness: CWE-122 · Heap-based Buffer Overflow
Published: 2026-08-03T07:16Z

References (1)

https://www.mediatek.com/product-security-bulletin/August-2026 · [email protected]

EPSS history

Timeline

03 AUG 02:05Z
In wlan AP driver, there is a possible out of bounds write due to a missing bounds check
cvelistv5