#VU80274 Improper input validation in MediaTek products - CVE-2023-20821
Published: September 4, 2023
Vulnerability identifier: #VU80274
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-20821
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
MT2713
MT2735
MT6833
MT6835
MT6855
MT6879
MT6880
MT6886
MT6890
MT6895
MT6980
MT6983
MT6985
MT6990
MT8167
MT8167S
MT8168
MT8173
MT8175
MT8185
MT8188
MT8195
MT8321
MT8362A
MT8365
MT8385
MT8395
MT8666
MT8673
MT8675
MT8765
MT8766
MT8768
MT8781
MT8786
MT8788
MT8789
MT8791
MT8791T
MT6853
MT6873
MT6875
MT6877
MT6883
MT6885
MT6889
MT6891
MT6893
MT8797
MT2713
MT2735
MT6833
MT6835
MT6855
MT6879
MT6880
MT6886
MT6890
MT6895
MT6980
MT6983
MT6985
MT6990
MT8167
MT8167S
MT8168
MT8173
MT8175
MT8185
MT8188
MT8195
MT8321
MT8362A
MT8365
MT8385
MT8395
MT8666
MT8673
MT8675
MT8765
MT8766
MT8768
MT8781
MT8786
MT8788
MT8789
MT8791
MT8791T
MT6853
MT6873
MT6875
MT6877
MT6883
MT6885
MT6889
MT6891
MT6893
MT8797
Software vendor:
MediaTek
MediaTek
Description
The vulnerability allows a local privileged application to execute arbitrary code.
The vulnerability exists due to a missing bounds check within nvram. A local privileged application can execute arbitrary code.
Remediation
Install security update from vendor's website.