CVE-2023-21477 | BDVDB-2026-292008 Detail

SamsungSamsung Mobile Devices

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: local.

Weaknesses#

CWE-788 Access of Memory Location After End of Buffer

References#

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=04

Exploit#

No public exploit known

History#

Version 12025-09-03Record published in the CVE List.
Version 22026-02-26Most recent update recorded in the CVE List.

Published

Published: 2025-09-03
Last modified: 2026-02-26

Vendor information

Vendor: Samsung
Product: Samsung Mobile Devices

All Samsung vulnerabilities

Score

7.9 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 3.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
SMR Apr-2023 Release in Android 11, 12, 13

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.9 High

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).