What is CVE-2023-30681?

CVE-2023-30681 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2023-08-10.

How severe is CVE-2023-30681?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Buffer overflow in Samsung Android

CVE-2023-30681

An improper input validation vulnerability within initialize function in HAL VaultKeeper prior to SMR Aug-2023 Release 1 allows attacker to cause out-of-bounds write.

Vulnerability class: Buffer Overflow

Published 2023-08-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (6.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.6% 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 SMR Aug-2023 Release 1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2023-30681?: CVE-2023-30681 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2023-08-10.
How severe is CVE-2023-30681?: Medium severity. CVSS v3 base score is 4.4 out of 10.