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CVE-2026-21069: CWE-681 Incorrect Conversion between Numeric Types in Samsung Mobile Samsung Mobile Devices

0
Medium
Published: 08/10/2026 (08/10/2026, 07:41:35 UTC)
Source: CVE Database V5
Vendor/Project: Samsung Mobile
Product: Samsung Mobile Devices

Description

CVE-2026-21069 is a medium severity vulnerability in Samsung Mobile Devices involving an incorrect conversion between numeric types in the VC1 codec component (libsavsvc.so). This flaw allows local attackers to write out-of-bounds memory, potentially leading to memory corruption. The issue affects versions prior to the Samsung Mobile SMR August 2026 Release 1. No official patch or remediation guidance has been provided yet, and there are no known exploits in the wild.

CVSS v4.0

Score 5.1medium

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
Low
Subsq. Integrity
Low
Subsq. Availability
Low
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Affected software

Samsung Mobile

Samsung Mobile Devices

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/17/2026, 15:36:24 UTC

Technical Analysis

This vulnerability arises from an incorrect conversion between numeric types in the VC1 codec within the libsavsvc.so library on Samsung Mobile Devices. The flaw permits local attackers to perform out-of-bounds memory writes, which could lead to undefined behavior or memory corruption. The vulnerability is identified as CWE-681 and has a CVSS 4.0 base score of 5.1, indicating medium severity. It affects devices running software versions prior to the SMR August 2026 Release 1. No vendor advisory or patch information is currently available.

Potential Impact

Local attackers can exploit this vulnerability to write out-of-bounds memory, which may cause memory corruption or instability on affected Samsung Mobile Devices. The impact is limited by the requirement for local access and the absence of known remote exploitation or privilege escalation vectors. There are no reports of active exploitation in the wild.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should apply the SMR August 2026 Release 1 once available, as it is implied to address this issue. No additional vendor-provided mitigation instructions are currently available.

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Technical Details

Data Version
5.2
Assigner Short Name
SamsungMobile
Date Reserved
2025-12-11T01:33:35.824Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a798b48bf8831d53957fd4b

Added to database: 08/10/2026, 08:26:48 UTC

Last enriched: 08/17/2026, 15:36:24 UTC

Last updated: 09/22/2026, 13:47:43 UTC

Views: 46

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