What is CVE-2023-21044?

CVE-2023-21044 is a medium-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.4/10. Published 2023-03-24.

How severe is CVE-2023-21044?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Buffer overflow in Google Android

CVE-2023-21044

In init of VendorGraphicBufferMeta, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-253425086References: N/A

Vulnerability class: Buffer Overflow

Published 2023-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.6th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.6% 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
Android — versions Android kernel

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

source.android.com/security/bulletin/pixel/2023-03-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21044?: CVE-2023-21044 is a medium-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.4/10. Published 2023-03-24.
How severe is CVE-2023-21044?: Medium severity. CVSS v3 base score is 4.4 out of 10.