Improper Authentication in MediaTek products - CVE-2025-20730
Published: November 3, 2025
Vulnerability identifier: #VU117892
CSH Severity: Low
CVSS v4.0: 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-2025-20730
CWE-ID: CWE-287
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: MediaTek
Affected software:
MT2737
MT6739
MT6761
MT6765
MT6768
MT6789
MT6833
MT6835
MT6855
MT6878
MT6879
MT6886
MT6895
MT6897
MT6899
MT6983
MT6985
MT6989
MT6990
MT6991
MT8188
MT8195
MT8676
MT8678
MT8696
MT6781
MT6853
MT6877
MT6883
MT6885
MT6889
MT6893
MT2737
MT6739
MT6761
MT6765
MT6768
MT6789
MT6833
MT6835
MT6855
MT6878
MT6879
MT6886
MT6895
MT6897
MT6899
MT6983
MT6985
MT6989
MT6990
MT6991
MT8188
MT8195
MT8676
MT8678
MT8696
MT6781
MT6853
MT6877
MT6883
MT6885
MT6889
MT6893
Detailed vulnerability description
The vulnerability allows a local application to execute arbitrary code.
The vulnerability exists due to an insecure default value within preloader. A local application can execute arbitrary code.
How to mitigate CVE-2025-20730
Install security update from vendor's website.