Detalle CWE-1109

CWE-1109

Use of Same Variable for Multiple Purposes
Incomplete
2019-01-03
00h00 +00:00
2025-12-11
00h00 +00:00
CWE Mitre.org
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Nombre: Use of Same Variable for Multiple Purposes

The code contains a callable, block, or other code element in which the same variable is used to control more than one unique task or store more than one instance of data.

Informaciones generales

Modos de introducción

Implementation

Plataformas aplicables

Lenguaje

Class: Not Language-Specific (Undetermined)

Consecuencias comunes

Alcance Impacto Probabilidad
OtherReduce Maintainability

Note: This issue makes it more difficult to maintain the product, which indirectly affects security by making it more difficult or time-consuming to find and/or fix vulnerabilities. It also might make it easier to introduce vulnerabilities.
OtherIncrease Analytical Complexity

Note: Use of the same variable for multiple purposes can make it more difficult for a person to read or understand the code, potentially hiding other quality issues.

Ejemplos observados

Referencias Descripción

CVE-2023-26463

Chain: IPSec VPN product uses the same variable for multiple purposes in the same function (CWE-1109), leading to incorrect access control (CWE-284) and expired pointer dereference (CWE-825)

Notas de mapeo de vulnerabilidades

Justificación : This entry is primarily a quality issue with no direct security implications.
Comentario : Look for weaknesses that are focused specifically on insecure behaviors that have more direct security implications.

Referencias

REF-963

Providing a Framework for Effective Software Quality Assessment
Robert A. Martin, Lawrence H. Shafer.
https://www.researchgate.net/publication/285403022_PROVIDING_A_FRAMEWORK_FOR_EFFECTIVE_SOFTWARE_QUALITY_MEASUREMENT_MAKING_A_SCIENCE_OF_RISK_ASSESSMENT

Envío

Nombre Organización Fecha Fecha de lanzamiento Version
CWE Content Team MITRE 2018-07-02 +00:00 2019-01-03 +00:00 3.2

Modificaciones

Nombre Organización Fecha Comentario
CWE Content Team MITRE 2020-02-24 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Description
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2024-02-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Applicable_Platforms, Common_Consequences, Description, Observed_Examples, Time_of_Introduction
La información presentada en CVE Find proviene de varias fuentes de referencia cuidadosamente seleccionadas. Los datos CVE son proporcionados por MITRE Corporation y la Base de Datos Nacional de Vulnerabilidades (NVD). El catálogo de Vulnerabilidades Explotadas Conocidas (KEV) proviene de la Agencia de Seguridad de Infraestructura y Ciberseguridad (CISA), mientras que las puntuaciones EPSS provienen de FIRST.org. Además, los datos sobre debilidades de software (CWE) y patrones de ataque comunes (CAPEC) son mantenidos por MITRE Corporation, y la información sobre configuraciones de hardware y software (CPE) es proporcionada por la NVD.