CVE-2024-20833 Use after free in Samsung Mobile Devices

What is CVE-2024-20833?

CVE-2024-20833 is a medium-severity use after free vulnerability in Samsung Android, published on 5 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Use after free vulnerability in pub_crypto_recv_msg prior to SMR Mar-2024 Release 1 due to race condition allows local attackers with system privilege to cause memory corruption.

Weakness: CWE-416

Which versions are affected by CVE-2024-20833?

It affects 1 product.

Products include Samsung Android.

How do I fix CVE-2024-20833?

No fix has been published for CVE-2024-20833 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2024-20833 being exploited?

There is no known exploitation of CVE-2024-20833 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-835r-7gv7-g577.