CVE-2023-21477

Name: CVE-2023-21477
Creator: NVD / NIST
Published: 2025-09-03T06:15:42.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.13%

Last modified Jun 17, 2026

CVE-2023-21477 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.13%

3.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions	Update
Samsung	Android	11.0	Smr-Apr-2021-R1
Samsung	Android	12.0	Smr-Apr-2022-R1
Samsung	Android	13.0	Smr-Apr-2022-R1

References

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

Timeline

Published: Sep 3, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2023-21477?

CVE-2023-21477 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21477?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-21477?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST