CVE-2026-21068 is a vulnerability in Samsung Mobile Devices
Published on August 10, 2026
Stack-based buffer overflow in libril_sem.so prior to SMR Aug-2026 Release 1 allows privileged local attackers to execute arbitrary code.
Vulnerability Analysis
CVE-2026-21068 is exploitable with local system access, and requires user privileges. 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
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-21068 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-21068
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Affected Versions
Samsung Mobile Devices:- Version SMR Aug-2026 Release in Android 14, 15, 16 and below * is unaffected.