Samsung libsimba.heifdec.media.samsung.so OOB Write via Improper Input Validation
CVE-2026-21126 Published on October 12, 2026
Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to write out-of-bounds memory.
Vulnerability Analysis
CVE-2026-21126 is exploitable with local system access, and does not require authorization privileges or user interaction. 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.
Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Products Associated with CVE-2026-21126
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Affected Versions
Samsung Mobile Devices:- Version SMR Oct-2026 Release in Android 14, 15, 16, 17 and below * is unaffected.