What is CVE-2023-21496?

CVE-2023-21496 is a medium-severity vulnerability in Samsung Android, classified under Active Debug Code. CVSS score: 6.1/10. Published 2023-05-04.

How severe is CVE-2023-21496?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Samsung Android

CVE-2023-21496

Active Debug Code vulnerability in ActivityManagerService prior to SMR May-2023 Release 1 allows attacker to use debug function via setting debug level.

Published 2023-05-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Samsung Android — versions 11.0, 12.0, 13.0
Samsung Mobile Devices — versions Android 11, 12, 13

Weakness classification (CWE)

CWE-489 — Active Debug Code

References

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

Frequently asked questions

What is CVE-2023-21496?: CVE-2023-21496 is a medium-severity vulnerability in Samsung Android, classified under Active Debug Code. CVSS score: 6.1/10. Published 2023-05-04.
How severe is CVE-2023-21496?: Medium severity. CVSS v3 base score is 6.1 out of 10.