CVE-2026-20535CWE-862broken-access-control

CVE-2026-20535

Medium · published October 5, 2026

CVSS v3.1
6.7
EPSS
0%
Percentile
1.1
In the wild
Unconfirmed
What it is

In aidl, there is a possible escalation of privilege due to a missing permission 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: ALPS11185216; Issue ID: MSV-9039.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00108 · 1.1th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-05T06:16Z
Affected products (12)
ProductVersionsFixed in
mediatek/mt8910_firmwareall versions—
mediatek/mt6878_firmwareall versions—
mediatek/mt6881_firmwareall versions—
mediatek/mt6899_firmwareall versions—
mediatek/mt6989_firmwareall versions—
mediatek/mt6991_firmwareall versions—
mediatek/mt6993_firmwareall versions—
mediatek/mt8188_firmwareall versions—
mediatek/mt8189_firmwareall versions—
mediatek/mt8668_firmwareall versions—
mediatek/mt8781_firmwareall versions—
mediatek/mt8793_firmwareall versions—
References (1)
https://www.mediatek.com/product-security-bulletin/October-2026 · [email protected]
EPSS history
Timeline
  • 07 OCT 03:40Z
    EPSS moved — → 0%
    epss
  • 05 OCT 01:40Z
    In aidl, there is a possible escalation of privilege due to a missing permission check
    cvelistv5