CVE-2026-20491CWE-787

CVE-2026-20491

Medium · published August 3, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
3.5
In the wild
Unconfirmed
What it is

In med, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10981478 (Note: For MT6890, MT6990, MT6988) / AUTO00851173 (Note: For MT2735, MT2737); Issue ID: MSV-7652.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00146 · 3.5th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-08-03T07:16Z
Affected products (5)
ProductVersionsFixed in
mediatek/mt2735_firmwareall versions—
mediatek/mt2737_firmwareall versions—
mediatek/mt6890_firmwareall versions—
mediatek/mt6988_firmwareall versions—
mediatek/mt6990_firmwareall versions—
References (1)
https://www.mediatek.com/product-security-bulletin/August-2026 · [email protected]
EPSS history
Timeline
  • 03 AUG 02:05Z
    In med, there is a possible out of bounds write due to an incorrect bounds check
    cvelistv5