CVE-2023-21477

Access of Memory Location After End of Buffer vulnerability in TIGERF trustlet prior to SMR Apr-2023 Release 1 allows local attackers to access protected data.

Published: 2025-09-03 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-21477 is rated Low Risk (32.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.13%). 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-2023-21477

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 2026-06-15 0.01% 0.13% +0.12%
2 2025-09-03 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-21477

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.9 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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:N)
Service keeps running; no real outage angle.
 1.5 5.8 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2023-21477

Affected software / configurations for CVE-2023-21477

Vendor Product Version Raw CPE
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: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-2021-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-2022-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-2021-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: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-2021-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-2021-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-2023-21477

cvelogic Threat Intelligence