CVE-2026-21070 Information disclosure in Samsung Mobile Devices

What is CVE-2026-21070?

CVE-2026-21070 is a medium-severity vulnerability in Samsung Android, published on 10 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper input validation in Samsung Message prior to SMR Aug-2026 Release 1 allows physical attackers to access sensitive information.

Weakness: CWE-20

Which versions are affected by CVE-2026-21070?

It affects 1 product.

Products include Samsung Android.

How do I fix CVE-2026-21070?

No fix has been published for CVE-2026-21070 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21070 being exploited?

There is no known exploitation of CVE-2026-21070 in the wild and no public exploit code.

Other vulnerabilities in Samsung Android

• CVE-2025-21042 Samsung Mobile Devices Out-of-Bounds Write Exploited High 8.8
• CVE-2025-21043 Samsung Mobile Devices Out-of-Bounds Write Exploited High 8.8
• CVE-2021-25487 Samsung Mobile Devices Out-of-Bounds Read Exploited High 7.3
• CVE-2021-25394 Samsung Mobile Devices Race Condition Exploited Medium 6.4
• CVE-2021-25395 Samsung Mobile Devices Race Condition Exploited Medium 6.4

All Samsung Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cqww-5wfg-hfpv.