CVE-2026-110934 in Vyond
Summary
by MITRE • 10/15/2026
Improper validation of array index vulnerability in Samsung Open Source Vyond allows Input Data Manipulation.
This issue affects Vyond: before be6e297b0c4836e20d73b2f8a40a561ea496ebaa.
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Analysis
by VulDB Data Team • 10/15/2026
The vulnerability identified in Samsung Open Source Vyond represents a critical failure in input validation mechanisms, specifically concerning the handling of array indices within the application's codebase. This flaw allows an attacker to manipulate input data by providing out-of-bounds or invalid array index values that are not properly checked before being used for memory access operations. In software development, particularly in systems programming languages like C or C++ which are common in embedded and open-source projects such as Vyond, the responsibility for ensuring that indices fall within valid bounds lies entirely with the developer. When this validation is omitted or implemented incorrectly, the application proceeds to use these untrusted values directly, leading to unpredictable behavior during runtime execution. This type of error is fundamentally rooted in a lack of rigorous boundary checking, which is a prerequisite for secure data processing in any software system that accepts external input.
From a technical perspective, this improper validation leads to potential memory corruption issues, including buffer overflows or out-of-bounds reads and writes. When an array index exceeds the allocated size of the array, it can result in reading sensitive information from adjacent memory locations, potentially leading to information disclosure vulnerabilities where confidential data is leaked to an unauthorized party. Conversely, if the invalid index points to a writable region outside the intended buffer boundaries, it may allow for arbitrary code execution by overwriting critical program structures such as return addresses or function pointers. This scenario aligns closely with CWE-125, which describes Out-of-bounds Read vulnerabilities, and CWE-787, which covers Out-of-bounds Write conditions. These weaknesses are among the most dangerous in software security because they provide a direct pathway for attackers to compromise the integrity, confidentiality, and availability of the affected system.
The operational impact of this vulnerability is significant, particularly given that Vyond is often deployed in environments where reliability and data integrity are paramount. An attacker who can exploit this flaw does not necessarily need high-level privileges; depending on the context of the application's execution environment, even a low-privileged user or an external network-facing service could trigger the condition. If exploited successfully, the consequences range from denial of service through application crashes to more severe compromises such as remote code execution. This aligns with several tactics in the MITRE ATT&CK framework, particularly those related to initial access and privilege escalation via exploitation of software vulnerabilities. The ability to manipulate input data effectively bypasses intended security controls, allowing attackers to inject malicious payloads or disrupt service availability without detection by standard perimeter defenses that do not inspect application-layer logic errors.
Mitigation strategies for this vulnerability must focus on implementing robust defensive programming practices within the Vyond codebase. Developers should enforce strict bounds checking whenever array indices are calculated from user-supplied data. This involves validating that all input values fall within the expected minimum and maximum limits before they are used to access memory structures. Additionally, employing static analysis tools during the development phase can help identify these logical errors early in the software lifecycle. For organizations currently running affected versions of Vyond prior to commit be6e297b0c4836e20d73b2f8a40a561ea496ebaa, immediate patching is essential to close this security gap. Furthermore, deploying runtime application self-protection mechanisms or web application firewalls configured to detect anomalous memory access patterns can provide an additional layer of defense against exploitation attempts while the underlying code is being remediated.