Out-of-Bounds Write Vulnerability in MPEG4 Codec for Android by Samsung
CVE-2025-21006

7.8HIGH

Key Information:

Vendor

Samsung
Status
Libsavsvc.so
Vendor
CVE Published:
8 July 2025

What is CVE-2025-21006?

An out-of-bounds write vulnerability exists in the handling of macro blocks for the MPEG4 codec within the libsavsvc.so library on devices running Android prior to version 15. This flaw permits local attackers to write data to memory locations outside the bounds of allocated buffers, potentially leading to memory corruption and unauthorized code execution.

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Affected Version(s)

libsavsvc.so Android 15

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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