What is CVE-2026-0138?

CVE-2026-0138 is a high-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2026-06-16.

How severe is CVE-2026-0138?

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

Buffer overflow in Google Android

CVE-2026-0138

In lwis_io_buffer_write of lwis_io_buffer.c, there is a possible out of bounds write due to memory corruption. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Buffer Overflow

Published 2026-06-16 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.001 (0.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Google Android — versions Android kernel

Weakness classification (CWE)

References

source.android.com/docs/security/bulletin/pixel/2026/2026-06-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-0138?: CVE-2026-0138 is a high-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2026-06-16.
How severe is CVE-2026-0138?: High severity. CVSS v3 base score is 7.8 out of 10.