What is CVE-2022-23431?

CVE-2022-23431 is a medium-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.4/10. Published 2022-02-11.

How severe is CVE-2022-23431?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Buffer overflow in Google Android

CVE-2022-23431

An improper boundary check in RPMB ldfw prior to SMR Feb-2022 Release 1 allows arbitrary memory write and code execution.

Vulnerability class: Buffer Overflow

Published 2022-02-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.6th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.6% 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 10.0, 11.0, 12.0
Samsung Exynos
Samsung Mobile Devices With Exynos Chipsets — versions P(9.0), Q(10.0), R(11.0), S(12.0) devices with selected Exynos chipsets

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

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

Frequently asked questions

What is CVE-2022-23431?: CVE-2022-23431 is a medium-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.4/10. Published 2022-02-11.
How severe is CVE-2022-23431?: Medium severity. CVSS v3 base score is 6.4 out of 10.