CWE-755: Improper Handling of Exceptional Conditions

What is CWE-755?

CWE-755 is Improper Handling of Exceptional Conditions. The flaw arises when the product does not handle or incorrectly handles an exceptional condition. The database currently holds 49 vulnerabilities mapped to CWE-755 and none of them are in the CISA Known Exploited Vulnerabilities catalog.

Analyzing data...

OWASP TOP 10:2025 RANK10 — A10:2025 — Mishandling of Exceptional Conditions
Related CVES (365 days)49
AbstractionClass
Likelihood of exploitMedium

Vulnerabilities mapped to CWE-755

49 vulnerabilities308% increase year over year

No data

No vulnerability data in CISA KEV for CWE-755

Official definition

ByMitre CWE

The product does not handle or incorrectly handles an exceptional condition.

Characteristics

Modes of introduction

  • Implementation: REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Common consequences

ImpactScopeExplanation
OtherOther-

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.)-

Representative vulnerabilities

Sources (2)

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