What is CVE-2025-20746?

CVE-2025-20746 is a medium-severity vulnerability in Google Android, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2025-11-04.

How severe is CVE-2025-20746?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Google Android

CVE-2025-20746

In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 14.0, 15.0
Linuxfoundation Yocto — versions 4.0
Mediatek Mt2718
Mediatek Mt2737
Mediatek Mt6835
Mediatek Mt6878
Mediatek Mt6886
Mediatek Mt6897
Mediatek Mt6899
Mediatek Mt6982

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow
CWE-787 — Out-of-bounds Write

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20746?: CVE-2025-20746 is a medium-severity vulnerability in Google Android, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2025-11-04.
How severe is CVE-2025-20746?: Medium severity. CVSS v3 base score is 6.7 out of 10.