What is CVE-2025-20633?

CVE-2025-20633 is a high-severity vulnerability in Mediatek Mt7603, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-02-03.

How severe is CVE-2025-20633?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Mediatek Mt7603

CVE-2025-20633

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for ex…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (25.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mediatek Mt7603
Mediatek Mt7615
Mediatek Mt7622
Mediatek Mt7915
Mediatek Software_development_kit
Mediatek, Inc. Mt7603, Mt7615, Mt7622, Mt7915 — versions SDK release 7.4.0.1 and before

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20633?: CVE-2025-20633 is a high-severity vulnerability in Mediatek Mt7603, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-02-03.
How severe is CVE-2025-20633?: High severity. CVSS v3 base score is 8.8 out of 10.