What is CVE-2025-20797?

CVE-2025-20797 is a high-severity vulnerability in Google Android, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-01-06.

How severe is CVE-2025-20797?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Google Android

CVE-2025-20797

In battery, there is a possible out of bounds write due to a missing 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 exploita…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 14.0, 15.0, 16.0
Mediatek Mt2718
Mediatek Mt6765
Mediatek Mt6768
Mediatek Mt6781
Mediatek Mt6833
Mediatek Mt6835
Mediatek Mt6853
Mediatek Mt6855
Mediatek Mt6877

Weakness classification (CWE)

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20797?: CVE-2025-20797 is a high-severity vulnerability in Google Android, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-01-06.
How severe is CVE-2025-20797?: High severity. CVSS v3 base score is 7.8 out of 10.