What is CVE-2025-20684?

CVE-2025-20684 is a critical-severity vulnerability in Mediatek Mt7615, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-07-08.

How severe is CVE-2025-20684?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Mediatek Mt7615

CVE-2025-20684

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID…

Vulnerability class: Buffer Overflow

EPSS: 0.005 (40.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mediatek Mt7615
Mediatek Mt7622
Mediatek Mt7663
Mediatek Software_development_kit
Mediatek, Inc. Mt7615, Mt7622, Mt7663 — versions SDK release 5.1.0.0 and before

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20684?: CVE-2025-20684 is a critical-severity vulnerability in Mediatek Mt7615, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-07-08.
How severe is CVE-2025-20684?: Critical severity. CVSS v3 base score is 9.8 out of 10.