CWE-1126 Details

CWE-1126

Declaration of Variable with Unnecessarily Wide Scope
Incomplete
2019-01-03
00h00 +00:00
2025-12-11
00h00 +00:00
CWE Mitre.org
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Name: Declaration of Variable with Unnecessarily Wide Scope

The source code declares a variable in one scope, but the variable is only used within a narrower scope.

Allgemeine Informationen

Einführungsmodi

Implementation

Anwendbare Plattformen

Sprache

Class: Not Language-Specific (Undetermined)

Häufige Konsequenzen

Bereich Auswirkung Wahrscheinlichkeit
OtherReduce Maintainability, Increase Analytical Complexity

Note: This issue makes it more difficult to understand and/or 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.

Erkennungsmethoden

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Hinweise zur Schwachstellen-Zuordnung

Begründung : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Kommentar : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Einreichung

Name Organisation Datum Veröffentlichungsdatum Version
CWE Content Team MITRE 2018-07-02 +00:00 2019-01-03 +00:00 3.2

Änderungen

Name Organisation Datum Kommentar
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 2025-12-11 +00:00 updated Applicable_Platforms, Common_Consequences, Description, Detection_Factors, Time_of_Introduction
Die auf CVE Find präsentierten Informationen stammen aus mehreren sorgfältig ausgewählten Referenzquellen. CVE-Daten werden von der MITRE Corporation und der National Vulnerability Database (NVD) bereitgestellt. Der Katalog bekannter ausgenutzter Schwachstellen (KEV) stammt von der Cybersecurity and Infrastructure Security Agency (CISA), während EPSS-Scores von FIRST.org kommen. Darüber hinaus werden Daten zu Software-Schwachstellen (CWE) und häufigen Angriffsmustern (CAPEC) von der MITRE Corporation gepflegt, und Informationen zu Hardware- und Software-Konfigurationen (CPE) werden von der NVD bereitgestellt.