Improper Authentication in MediaTek products - CVE-2022-20034

Vulnerability identifier: #VU73012

CSH Severity: Low

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

CVE-ID: CVE-2022-20034

CWE-ID: CWE-287

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6580
MT6735
MT6739
MT6761
MT6763
MT6765
MT6768
MT6769
MT6771
MT6799
MT6833
MT6779
MT6781
MT6785
MT6853
MT6873
MT6875
MT6877
MT6885
MT6891
MT6893

Software vendor:
MediaTek

The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to an improper certificate validation within Preloader XFLASH. A local application can execute arbitrary code.

Install security update from vendor's website.

• https://corp.mediatek.com/product-security-bulletin/February-2022