CVE-2026-21070
Samsung Message Improper Input Validation Vulnerability
Description
Improper input validation in Samsung Message prior to SMR Aug-2026 Release 1 allows physical attackers to access sensitive information.
INFO
Published Date :
Aug. 10, 2026, 9:17 a.m.
Last Modified :
Aug. 19, 2026, 1:09 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 3af57064-a867-422c-b2ad-40307b65c458 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Apply the SMR Aug-2026 Release 1 update for Samsung Message.
- Ensure the device is updated to the latest security patch.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-21070.
| URL | Resource |
|---|---|
| https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=08 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-21070 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-21070
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-21070 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-21070 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2021-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2021-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:-:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-apr-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-mar-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-jun-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-may-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-jul-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-aug-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-sep-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-oct-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-nov-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-dec-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-feb-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-jan-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-jan-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-feb-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-mar-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-apr-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-may-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-jul-2026-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-jun-2026-r1:*:*:*:*:*:* Added Reference Type Samsung Mobile: https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=08 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 10, 2026
Action Type Old Value New Value Added CWE CWE-20 Added SSVC {'id': 'CVE-2026-21070', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-10T17:43:00.998291Z'} -
New CVE Received by [email protected]
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Samsung Mobile', 'product': 'Samsung Mobile Devices', 'versions': [{'status': 'unaffected', 'version': 'SMR Aug-2026 Release in Android 14, 15', 'lessThan': '*', 'versionType': 'semver'}], 'defaultStatus': 'affected'}] Added Description Improper input validation in Samsung Message prior to SMR Aug-2026 Release 1 allows physical attackers to access sensitive information. Added CVSS V4.0 AV:P/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added Reference https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=08