#VU65040 Race condition in MediaTek products - CVE-2022-21772

Vulnerability identifier: #VU65040

Vulnerability risk: 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-2022-21772

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6761
MT6765
MT6768
MT6771
MT6833
MT6879
MT6895
MT6983
MT8185
MT8765
MT8766
MT8768
MT8785
MT8786
MT8788
MT8791
MT6779
MT6885
MT6893
MT8797

Software vendor:
MediaTek

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a race condition in TEEI driver. A local application can exploit the race and escalate privileges on the system.

Install updates from vendor's website.

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