Local buffer overflow via unchecked PLH validation
Published Feb 6, 2024 · Updated Jun 17, 2025
Out-of-bounds write in libsthmbc.so on Samsung Mobile Devices running Android 11 through 14 allows local users to trigger a buffer overflow. Samsung identifies svc1td_vld_plh_ap as the affected routine and states that missing check logic permits the out-of-bounds write. Exploitation requires local access to an affected device; Samsung reports a buffer overflow but does not claim code execution or data disclosure.
Summary
What happened
Out-of-bounds write in libsthmbc.so on Samsung Mobile Devices running Android 11 through 14 allows local users to trigger a buffer overflow. Samsung identifies svc1td_vld_plh_ap as the affected routine and states that missing check logic permits the out-of-bounds write. Exploitation requires local access to an affected device; Samsung reports a buffer overflow but does not claim code execution or data disclosure.
The record
- CVE
- CVE-2024-20819
- Published
- Feb 6, 2024
- Updated
- Jun 17, 2025
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Mobile Devices
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Feb 6, 2024CVE publishedPublication date reported by the CVE source.
- Jun 17, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo