CVE-2025-20891 Information disclosure in Samsung Mobile Devices

What is CVE-2025-20891?

CVE-2025-20891 is a medium-severity vulnerability in Samsung Android, published on 4 Feb 2025. 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

Out-of-bounds read in decoding malformed bitstream of video thumbnails in libsthmbc.so prior to SMR Jan-2025 Release 1 allows local attackers to read arbitrary memory. User interaction is required for triggering this vulnerability.

Weakness: CWE-125

Which versions are affected by CVE-2025-20891?

It affects 1 product.

Products include Samsung Android.

How do I fix CVE-2025-20891?

No fix has been published for CVE-2025-20891 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-20891 being exploited?

There is no known exploitation of CVE-2025-20891 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-9qm8-38h3-v7p7.