What is CVE-2025-48638?

CVE-2025-48638 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2025-12-08.

How severe is CVE-2025-48638?

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

Buffer overflow in Google Android

CVE-2025-48638

In __pkvm_load_tracing of trace.c, there is a possible out-of-bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed fo…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.8th 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 Android kernel

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write
CWE-20 — Improper Input Validation

References

security@android.com (Product)
security@android.com (Product)
security@android.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-48638?: CVE-2025-48638 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2025-12-08.
How severe is CVE-2025-48638?: High severity. CVSS v3 base score is 7.8 out of 10.