Stack-based buffer overflow in MediaTek products - CVE-2025-20749
Published: November 3, 2025
Vulnerability identifier: #VU117912
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-20749
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: MediaTek
Affected software:
MT6789
MT6835
MT6855
MT6878
MT6879
MT6886
MT6897
MT6899
MT6983
MT6985
MT6989
MT6991
MT8169
MT8188
MT8195
MT8196
MT8781
MT8796
MT6789
MT6835
MT6855
MT6878
MT6879
MT6886
MT6897
MT6899
MT6983
MT6985
MT6989
MT6991
MT8169
MT8188
MT8195
MT8196
MT8781
MT8796
Detailed vulnerability description
The vulnerability allows a local application to perform service disruption.
The vulnerability exists due to a missing bounds check within charger. A local application can perform service disruption.
How to mitigate CVE-2025-20749
Install security update from vendor's website.