What is CVE-2023-21033?

CVE-2023-21033 is a medium-severity vulnerability in Google Android, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2023-03-24.

How severe is CVE-2023-21033?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Google Android

CVE-2023-21033

In addNetwork of WifiManager.java, there is a possible way to trigger a persistent DoS due to resource exhaustion. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-244713323

Vulnerability class: DoS (Denial of Service)

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

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.4% 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 13.0
Android — versions Android-13

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

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

Frequently asked questions

What is CVE-2023-21033?: CVE-2023-21033 is a medium-severity vulnerability in Google Android, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2023-03-24.
How severe is CVE-2023-21033?: Medium severity. CVSS v3 base score is 5.5 out of 10.