Reachable Assertion in MediaTek products - CVE-2025-20791
Published: December 1, 2025
Vulnerability identifier: #VU118889
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-2025-20791
CWE-ID: CWE-617
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: MediaTek
Affected software:
MT2735
MT6833
MT6833P
MT6855
MT6855T
MT6875T
MT6877T
MT6877TT
MT6880
MT6890
MT8675
MT8771
MT8791
MT8791T
MT6853
MT6853T
MT6873
MT6875
MT6877
MT6883
MT6885
MT6889
MT6891
MT6893
MT8797
MT2735
MT6833
MT6833P
MT6855
MT6855T
MT6875T
MT6877T
MT6877TT
MT6880
MT6890
MT8675
MT8771
MT8791
MT8791T
MT6853
MT6853T
MT6873
MT6875
MT6877
MT6883
MT6885
MT6889
MT6891
MT6893
MT8797
Detailed vulnerability description
The vulnerability allows a local application to execute arbitrary code.
The vulnerability exists due to incorrect error handling within Modem. A local application can execute arbitrary code.
How to mitigate CVE-2025-20791
Install security update from vendor's website.