What is CVE-2023-21364?

CVE-2023-21364 is a medium-severity vulnerability in Google Android. CVSS score: 5.5/10. Published 2023-10-30.

How severe is CVE-2023-21364?

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

Vulnerability in Google Android

CVE-2023-21364

In ContactsProvider, there is a possible crash loop due to resource exhaustion. This could lead to local persistent denial of service in the Phone app with User execution privileges needed. User interaction is not needed for exploitation.

Published 2023-10-30 · 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 (0.2th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.2% 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 14.0, 14

References

source.android.com/docs/security/bulletin/android-14 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21364?: CVE-2023-21364 is a medium-severity vulnerability in Google Android. CVSS score: 5.5/10. Published 2023-10-30.
How severe is CVE-2023-21364?: Medium severity. CVSS v3 base score is 5.5 out of 10.