What is CWE-1041: Use of Redundant Code?

CWE-1041: Use of Redundant Code is a Common Weakness Enumeration (CWE) entry maintained by MITRE. The product has multiple functions, methods, procedures, macros, etc. that contain the same code.

What are the security consequences of Use of Redundant Code?

If exploited, CWE-1041 (Use of Redundant Code) it can compromise Other, leading to outcomes such as Reduce Maintainability.

How do you prevent or mitigate Use of Redundant Code?

Recommended mitigations for CWE-1041 include: Merge common functionality into a single function and then call that function from across the entire code base.

Which programming languages are affected by Use of Redundant Code?

CWE-1041 commonly affects Not Language-Specific. Note that weaknesses are often language-agnostic patterns, so secure coding practices apply broadly.

What is the difference between a CWE and a CVE?

A CWE (Common Weakness Enumeration) like CWE-1041 describes a category of software weakness — the underlying flaw type. A CVE (Common Vulnerabilities and Exposures) identifies a specific, real-world vulnerability in a particular product. In short, a CWE is the kind of mistake, and a CVE is an instance of that mistake being found in software.

CWE-1041: Use of Redundant Code

Verify controls for CWE-1041 with SSDF evidence

Use NIST SSDF verification and vulnerability-response practices to detect CWE-1041, Use of Redundant Code, throughout the product lifecycle. Derive review questions, static or dynamic checks, and negative tests from the CWE's causal behavior; define the components and lifecycle stages each check covers; and retain findings with enough evidence to distinguish the root cause from symptoms and impacts. Track escapes and false negatives, then improve the verification plan after every confirmed occurrence.

NIST SP 800-218 Secure Software Development Framework — National Institute of Standards and Technology

Address Use of Redundant Code during Implementation

MITRE associates mitigation with Implementation; documented detection approaches include Automated Static Analysis; recorded impacts include Reduce Maintainability. Use these source-defined anchors to turn CWE-1041 into implementation, review, and verification checks for the affected component.

CWE-1041: Use of Redundant Code — MITRE CWE

Triage CWE-1041 against known exploitation evidence

Use CISA's Known Exploited Vulnerabilities catalog to test whether a vulnerability mapped to CWE-1041, Use of Redundant Code, has evidence of exploitation in the wild. Confirm the CVE-to-CWE root-cause mapping independently before attaching the example, then capture the affected product, required action, and remediation deadline. A missing KEV match is not evidence that the weakness is unexploited, and a KEV entry must not be generalized to every occurrence of this CWE.

Known Exploited Vulnerabilities Catalog — Cybersecurity and Infrastructure Security Agency

Apply precise root-cause mapping to CWE-1041

Apply MITRE's full root-cause mapping guidance when using CWE-1041, Use of Redundant Code. Separate weakness language from attacker prerequisites and technical impact, check the entry's abstraction and vulnerability-mapping notes, and prefer the most specific Base or Variant supported by the evidence. Record the rejected alternatives and require an independent review before the mapping is used for remediation trends or program metrics.

CVE to CWE Root Cause Mapping Guidance — MITRE CWE

Validate CWE-1041 with root-cause mapping checks

Apply MITRE's root-cause mapping quick tips to CWE-1041, Use of Redundant Code. Confirm the finding describes the causal weakness rather than an impact or attack pattern, compare the abstraction and mapping notes with plausible alternatives, and have a second reviewer challenge the selection. Preserve the evidence and reasoning so recurring defects can be measured against one consistent identifier.

CVE to CWE Root Cause Mapping Quick Tips — MITRE CWE

CWE-1041: Use of Redundant Code

Technical Details

Applicable To

Security Consequences

Scope

Impact

Mitigation Strategies

Phase

Description

Detection Methods

Code Examples & CVEs

Demonstrative Examples

CWE Relationships

Parent Weaknesses

Source-backed guidance

Verify controls for CWE-1041 with SSDF evidence

Address Use of Redundant Code during Implementation

Triage CWE-1041 against known exploitation evidence

Apply precise root-cause mapping to CWE-1041

Validate CWE-1041 with root-cause mapping checks

Frequently Asked Questions

Learn More