CVE-2023-21472

Improper input validation with Exynos Fastboot USB Interface prior to SMR Apr-2023 Release 1 allows a physical attacker to execute arbitrary code in bootloader.

Published: 2025-09-03 Last update: 2025-09-05 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-21472 is rated Low Risk (31.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-21472

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 0.16% 0.04% -0.12%
2 2026-05-20 0.15% 0.16% +0.01%
3 2026-05-03 — 0.15% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-21472

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.1 MEDIUM
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.2 6.0 [email protected]

Weakness enumeration for CVE-2023-21472

Affected software / configurations for CVE-2023-21472

Vendor Product Version Raw CPE
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:-:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-apr-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-apr-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-aug-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-aug-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-dec-2020-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-dec-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-dec-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-feb-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-feb-2023-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jan-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jan-2023-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jul-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jul-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jun-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jun-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-mar-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-mar-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-mar-2023-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-may-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-may-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-nov-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-nov-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-oct-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-oct-2022-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-sep-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-sep-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:-:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-apr-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-aug-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-dec-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-feb-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-feb-2023-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-jan-2023-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-jul-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-jun-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-mar-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-mar-2023-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-may-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-nov-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-oct-2022-r1:*:*:*:*:*:*
samsung android 12.0 cpe:2.3:o:samsung:android:12.0:smr-sep-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:-:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-apr-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-aug-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-dec-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-feb-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-feb-2023-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-jan-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-jan-2023-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-jul-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-jun-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-mar-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-mar-2023-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-may-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-nov-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-oct-2022-r1:*:*:*:*:*:*
samsung android 13.0 cpe:2.3:o:samsung:android:13.0:smr-sep-2022-r1:*:*:*:*:*:*

References for CVE-2023-21472

cvelogic Threat Intelligence