CVE-2026-20477CWE-787

CVE-2026-20477

Medium · published August 3, 2026

CVSS v3.1
6.0
EPSS
0%
Percentile
5.5
In the wild
Unconfirmed
What it is

In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11009963; Issue ID: MSV-7658.

The record
Technical detail
CVSS v3.1
6.0 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00166 · 5.5th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-08-03T07:16Z
Affected products (10)
ProductVersionsFixed in
mediatek/mt8910_firmwareall versions—
mediatek/mt6991_firmwareall versions—
mediatek/mt6993_firmwareall versions—
mediatek/mt8188_firmwareall versions—
mediatek/mt8189_firmwareall versions—
mediatek/mt8668_firmwareall versions—
mediatek/mt8676_firmwareall versions—
mediatek/mt8678_firmwareall versions—
mediatek/mt8781_firmwareall versions—
mediatek/mt8799_firmwareall versions—
References (1)
https://www.mediatek.com/product-security-bulletin/August-2026 · [email protected]
EPSS history
Timeline
  • 03 AUG 02:05Z
    In display, there is a possible out of bounds write due to a missing bounds check
    cvelistv5