CVE-2026-21071: CWE-20 Improper input validation in Samsung Mobile Samsung Mobile Devices
Improper input validation in MPEG4 codec in libsavsvc.so prior to SMR Aug-2026 Release 1 allows local attackers to write out-of-bounds memory.
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2026-21071, is due to improper input validation in the MPEG4 codec component (libsavsvc.so) of Samsung Mobile Devices. It allows local attackers to perform out-of-bounds memory writes. The issue is present in versions before the SMR Aug-2026 Release 1. The CVSS 4.0 base score is 5.1, indicating medium severity. No vendor advisory or patch information is currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation could allow a local attacker to write out-of-bounds memory, which may lead to memory corruption and potentially impact device stability or security. However, the attack vector is local, and no privilege escalation or remote exploitation is indicated. The overall impact is rated medium based on the CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should limit local access to trusted parties and monitor for updates from Samsung Mobile regarding this vulnerability.
CVE-2026-21071: CWE-20 Improper input validation in Samsung Mobile Samsung Mobile Devices
Description
Improper input validation in MPEG4 codec in libsavsvc.so prior to SMR Aug-2026 Release 1 allows local attackers to write out-of-bounds memory.
CVSS v4.0
Score 5.1medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-21071, is due to improper input validation in the MPEG4 codec component (libsavsvc.so) of Samsung Mobile Devices. It allows local attackers to perform out-of-bounds memory writes. The issue is present in versions before the SMR Aug-2026 Release 1. The CVSS 4.0 base score is 5.1, indicating medium severity. No vendor advisory or patch information is currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation could allow a local attacker to write out-of-bounds memory, which may lead to memory corruption and potentially impact device stability or security. However, the attack vector is local, and no privilege escalation or remote exploitation is indicated. The overall impact is rated medium based on the CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should limit local access to trusted parties and monitor for updates from Samsung Mobile regarding this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- SamsungMobile
- Date Reserved
- 2025-12-11T01:33:35.824Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a798b48bf8831d53957fd51
Added to database: 08/10/2026, 08:26:48 UTC
Last enriched: 08/10/2026, 09:01:19 UTC
Last updated: 08/11/2026, 03:40:59 UTC
Views: 9
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