What is CVE-2023-42558?

CVE-2023-42558 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 6.0/10. Published 2023-12-05.

How severe is CVE-2023-42558?

Medium severity. CVSS v3 base score is 6.0 out of 10.

Buffer overflow in Samsung Android

CVE-2023-42558

Out of bounds write vulnerability in HDCP in HAL prior to SMR Dec-2023 Release 1 allows attacker to perform code execution.

Vulnerability class: Buffer Overflow

Published 2023-12-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (12.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.2% 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 13.0
Samsung Mobile Devices — versions SMR Dec-2023 Release in Android 13

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2023-42558?: CVE-2023-42558 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 6.0/10. Published 2023-12-05.
How severe is CVE-2023-42558?: Medium severity. CVSS v3 base score is 6.0 out of 10.