Buffer overflow in Mediatek, Inc. Mediatek Chipset
CVE-2026-20478
In Audio HAL, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10981454…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mediatek, Inc. Mediatek Chipset — versions MT2735, MT2737, MT6880
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20478?
- CVE-2026-20478 is a medium-severity vulnerability in Mediatek, Inc. Mediatek Chipset, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2026-08-03.
- How severe is CVE-2026-20478?
- Medium severity. CVSS v3 base score is 5.5 out of 10.