What is CVE-2025-48623?

CVE-2025-48623 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-2025-48623?

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

Buffer overflow in Google Android

CVE-2025-48623

In init_pkvm_hyp_vcpu of pkvm.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 for…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.7th 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)

References

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

Frequently asked questions

What is CVE-2025-48623?: CVE-2025-48623 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-2025-48623?: High severity. CVSS v3 base score is 7.8 out of 10.