Common Weakness Enumeration

CWE-483

Weakness Allowed

Incorrect Block Delimitation

Abstraction: Base · Status: Draft

The code does not explicitly delimit a block that is intended to contain 2 or more statements.

Mapping guidance

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.

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.

Relationships and members
ChildOf: CWE-670 · View CWE-1000
Modes of introduction
Implementation
Detection methods

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.)

Effectiveness: High

Content history
Submission: CLASP · 2006-07-19 · CWE Draft 3
Contribution: Michael Koo, Paul Black · NIST · 2010-04-28 · CWE 1.9

Correction to Demonstrative Examples

Modification: Eric Dalci · Cigital · 2008-07-01 · CWE 1.0

updated Time_of_Introduction

Modification: CWE Content Team · MITRE · 2008-09-08 · CWE 1.0

updated Applicable_Platforms, Common_Consequences, Description, Relationships, Other_Notes, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2009-05-27 · CWE 1.4

updated Demonstrative_Examples

Modification: CWE Content Team · MITRE · 2009-10-29 · CWE 1.6

updated Common_Consequences

Modification: CWE Content Team · MITRE · 2010-06-21 · CWE 1.9

updated Demonstrative_Examples, Description, Other_Notes

Modification: CWE Content Team · MITRE · 2011-06-01 · CWE 1.13

updated Common_Consequences

Modification: CWE Content Team · MITRE · 2011-06-27 · CWE 2.0

updated Common_Consequences

Modification: CWE Content Team · MITRE · 2012-05-11 · CWE 2.2

updated Relationships

Modification: CWE Content Team · MITRE · 2014-06-23 · CWE 2.7

updated Observed_Examples

Modification: CWE Content Team · MITRE · 2014-07-30 · CWE 2.8

updated Relationships

Modification: CWE Content Team · MITRE · 2017-11-08 · CWE 3.0

updated Relationships

Modification: CWE Content Team · MITRE · 2019-01-03 · CWE 3.2

updated Weakness_Ordinalities

Modification: CWE Content Team · MITRE · 2020-02-24 · CWE 4.0

updated References, Relationships, Type

Modification: CWE Content Team · MITRE · 2023-04-27 · CWE 4.11

updated Detection_Factors, Relationships

Modification: CWE Content Team · MITRE · 2023-06-29 · CWE 4.12

updated Mapping_Notes

Modification: CWE Content Team · MITRE · 2023-10-26 · CWE 4.13

updated Demonstrative_Examples

Modification: CWE Content Team · MITRE · 2025-12-11 · CWE 4.19

updated Observed_Examples

Modification: CWE Content Team · MITRE · 2026-10-28 · CWE 5.0

updated Background_Details, Common_Consequences, Description

2 vulnerabilities reference this CWE, most recent first.

CVE-2026-94575 (GCVE-0-2026-94575)

Vulnerability from cvelistv5 – Published: 2026-10-08 03:09 – Updated: 2026-10-08 17:22
VLAI
Summary
A logic vulnerability in Brocade Fabric OS versions before 10.0.1 web management framework allows an authenticated, low-privileged user to bypass inner Role-Based Access Control (RBAC) checks under specific environmental conditions. Successful exploitation lowers the system authorization mode for the active session context, allowing access to restricted configuration settings intended exclusively for administrative roles.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:22 UTC
CWE
  • CWE-483 - Incorrect Block Delimitation
Assigner
brocade CNA under the mitre root
CNA scorecard B 75/100 over 70 records in the last 180 days details
Impacted products
Vendor Product Version
Brocade Fabric OS Affected: 0 , < 10.0.1 (Brocade FabricOS)
Create a notification for this product.
Show details on NVD website

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GHSA-756G-CCF7-9XR2

Vulnerability from github – Published: 2026-10-08 06:31 – Updated: 2026-10-14 15:32
VLAI
Details

A logic vulnerability in Brocade Fabric OS versions before 10.0.1 web management framework allows an authenticated, low-privileged user to bypass inner Role-Based Access Control (RBAC) checks under specific environmental conditions. Successful exploitation lowers the system authorization mode for the active session context, allowing access to restricted configuration settings intended exclusively for administrative roles.

Show details on source website

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Mitigation
Implementation

Always use explicit block delimitation and use static-analysis technologies to enforce this practice.

No CAPEC attack patterns related to this CWE.