Out-of-Bounds Write in Samsung Codec2 SMR Aug-2026

Executive Summary

This is an out-of-bounds write vulnerability in the libcodec2secqcelpdec.so library before the SMR Aug-2026 Release 1. It allows local attackers to write data beyond the allocated memory boundaries, potentially corrupting adjacent memory.

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Detection Guidance

This vulnerability is a local out-of-bounds write in libcodec2secqcelpdec.so. Detection requires checking for vulnerable versions of this library on the system. Use commands like 'find / -name libcodec2secqcelpdec.so 2>/dev/null' to locate the file and 'strings libcodec2secqcelpdec.so | grep -i version' to check its version.

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Impact Analysis

Local attackers could exploit this to execute arbitrary code, crash the system, or escalate privileges on affected devices running the vulnerable library.

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Compliance Impact

This vulnerability involves an out-of-bounds write in a media codec library, which could allow local attackers to corrupt memory. Such memory corruption issues may lead to unauthorized data access or modification, potentially violating confidentiality requirements in GDPR or HIPAA. However, specific compliance impacts depend on system configuration and deployment context.

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Mitigation Strategies

Apply the SMR Aug-2026 Release 1 or later, which patches the out-of-bounds write issue. If the update is unavailable, restrict local access to untrusted users and monitor for suspicious activity.

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