Buffer overflow in Mediatek, Inc. Mediatek Chipset
CVE-2026-20465
In wlan AP driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00489200; Issue ID: MSV-7834.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (10.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Mediatek, Inc. Mediatek Chipset — versions MT6890, MT7915, MT7916
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20465?
- CVE-2026-20465 is a high-severity vulnerability in Mediatek, Inc. Mediatek Chipset, classified under Heap-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-08-03.
- How severe is CVE-2026-20465?
- High severity. CVSS v3 base score is 8.1 out of 10.