Samsung Mobile libsubextractor SO OOB Write via Input Validation Flaw
CVE-2026-21089 Published on September 9, 2026
Improper input validation in removing style tag in libsubextractor.so prior to SMR Sep-2026 Release 1 allows local attackers to write out-of-bounds memory.
Vulnerability Analysis
CVE-2026-21089 can be exploited with local system access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Products Associated with CVE-2026-21089
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Affected Versions
Samsung Mobile Devices:- Version SMR Sep-2026 Release in Android 14, 15, 16, 17 and below * is unaffected.