What is CVE-2023-21464?

CVE-2023-21464 is a medium-severity vulnerability in Google Android, classified under Improper Preservation of Permissions. CVSS score: 4.0/10. Published 2023-03-16.

How severe is CVE-2023-21464?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Google Android

CVE-2023-21464

Improper access control in Samsung Calendar prior to versions 12.4.02.9000 in Android 13 and 12.3.08.2000 in Android 12 allows local attacker to configure improper status.

Published 2023-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (3.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.1% 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 13.0, 12.0
Samsung Calendar
Samsung Mobile Calendar — versions unspecified

Weakness classification (CWE)

CWE-281 — Improper Preservation of Permissions

References

security.samsungmobile.com/serviceWeb.smsb (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21464?: CVE-2023-21464 is a medium-severity vulnerability in Google Android, classified under Improper Preservation of Permissions. CVSS score: 4.0/10. Published 2023-03-16.
How severe is CVE-2023-21464?: Medium severity. CVSS v3 base score is 4.0 out of 10.