CVE-2026-21023 Security feature bypass in Samsung Mobile Devices

What is CVE-2026-21023?

CVE-2026-21023 is a medium-severity vulnerability in Samsung Android, published on 29 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Insufficient verification of data authenticity in PackageManagerService prior to SMR Mar-2026 Release 1 allows local attackers to modify the installation restriction of specific application.

Which versions are affected by CVE-2026-21023?

It affects 1 product.

Products include Samsung Android.

How do I fix CVE-2026-21023?

No fix has been published for CVE-2026-21023 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21023 being exploited?

There is no known exploitation of CVE-2026-21023 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-pg82-7v49-4hr5.