CVE-2026-21115
Received Received - Intake

Out-of-bounds Write in Samsung Codec2 FLAC Decoder

Publication date: 2026-10-12

Last updated on: 2026-10-12

Assigner: Samsung Mobile

Description
Out-of-bounds write in libcodec2-sec-flacdec.so prior to SMR Oct-2026 Release 1 allows local attackers to write out-of-bounds memory.

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Meta Information

Published
2026-10-12
Last Modified
2026-10-12
Generated
2026-10-12
AI Q&A
2026-10-12
EPSS Evaluated
N/A
NVD
CVE-2026-21115
EUVD
EUVD-2026-97179

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
samsung libcodec2-sec-flacdec to 2026-10-01 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is an out-of-bounds write vulnerability in the libcodec2-sec-flacdec.so library before the SMR Oct-2026 Release 1. It allows local attackers to write data beyond allocated memory boundaries.

Detection Guidance

Detection requires checking for the vulnerable library libcodec2-sec-flacdec.so. Use commands like 'find / -name libcodec2-sec-flacdec.so 2>/dev/null' to locate the file. Verify the version against the SMR Oct-2026 Release 1 or later.

Impact Analysis

A local attacker could exploit this to corrupt memory, crash applications, or potentially execute arbitrary code on the affected system.

Mitigation Strategies

Apply the SMR Oct-2026 Release 1 or later update to patch the library. Remove or restrict access to the vulnerable file if updates are unavailable. Monitor for unusual memory writes or crashes in applications using this library.

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