What is CVE-2025-20674?

CVE-2025-20674 is a critical-severity vulnerability in Mediatek Mt6890, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2025-06-02.

How severe is CVE-2025-20674?

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

Auth bypass in Mediatek Mt6890

CVE-2025-20674

In wlan AP driver, there is a possible way to inject arbitrary packet due to a missing permission check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for e…

Vulnerability class: Broken Access Control

EPSS: 0.006 (45.6th 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 Mt6890
Mediatek Mt6990
Mediatek Mt7915
Mediatek Mt7916
Mediatek Mt7981
Mediatek Mt7986
Mediatek Mt7990
Mediatek Mt7992
Mediatek Mt7993
Mediatek Software_development_kit

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20674?: CVE-2025-20674 is a critical-severity vulnerability in Mediatek Mt6890, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2025-06-02.
How severe is CVE-2025-20674?: Critical severity. CVSS v3 base score is 9.8 out of 10.