Buffer overflow in Mediatek Mt6813
CVE-2026-20446
In sec boot, there is a possible out of bounds write due to an integer overflow. This could lead to local denial of service, if an attacker has physical access to the device, with User execution privileges needed. User interaction is not n…
Vulnerability class: Buffer Overflow
EPSS: 0.002 (9.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mediatek Mt6813
- Mediatek Mt6813_firmware
- Mediatek, Inc. Mediatek Chipset — versions MT6813
Weakness classification (CWE)
References
- security@mediatek.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20446?
- CVE-2026-20446 is a medium-severity vulnerability in Mediatek Mt6813, classified under Out-of-bounds Write. CVSS score: 4.3/10. Published 2026-04-07.
- How severe is CVE-2026-20446?
- Medium severity. CVSS v3 base score is 4.3 out of 10.