CWE-1104: Use of Unmaintained Third Party Components

What is CWE-1104?

CWE-1104 is Use of Unmaintained Third Party Components. The flaw arises when the product relies on third-party components that are not actively supported or maintained by the original developer or a trusted proxy for the original developer. The database currently holds 10 vulnerabilities mapped to CWE-1104 and none of them are in the CISA Known Exploited Vulnerabilities catalog.

OWASP TOP 10:2025 RANK3 — A03:2025 — Software Supply Chain Failures
Related CVES (365 days)10
AbstractionBase
Likelihood of exploit-

Vulnerabilities mapped to CWE-1104

10 vulnerabilities233% increase year over year

No data

No vulnerability data in CISA KEV for CWE-1104

Official definition

ByMitre CWE

The product relies on third-party components that are not actively supported or maintained by the original developer or a trusted proxy for the original developer.

Characteristics

Modes of introduction

  • Architecture and Design

Common consequences

ImpactScopeExplanation
Reduce Maintainability, Varies by ContextOtherRelying on unmaintained components makes it difficult or impossible to fix significant bugs and vulnerabilities, can render code obsolete, and undermine security by complicating maintenance and increasing the risk of new vulnerabilities.

Detection methods

MethodApproachEffectiveness
Automated Static AnalysisAutomated 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.)High

Representative vulnerabilities

Below are representative vulnerabilities related to this CWE, prioritized by severity.

Sources (2)
MITRE CWE
CWE Terms of Use

Supporting documents

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