Improper Handling of Insufficient Permissions or Privileges in MediaTek products - CVE-2026-20448

Vulnerability identifier: #VU129560

CSH Severity: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2026-20448

CWE-ID: CWE-280

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6765
MT6768
MT6789
MT6897
MT6899
MT6989
MT6991
MT6993
MT8367
MT8766
MT8768
MT8775
MT8781
MT8786
MT8788E
MT8791T
MT8792
MT8793
MT8796
MT8893
MT8910
MT6877

Software vendor:
MediaTek

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper handling of insufficient permissions or privileges in geniezone when performing privileged operations. A local user can invoke the vulnerable functionality to escalate privileges.

Install security update from vendor's website.