CWE-248: Uncaught Exception

What is CWE-248?

CWE-248 is Uncaught Exception. The flaw arises when an exception is thrown from a function, but it is not caught. The database currently holds 141 vulnerabilities mapped to CWE-248 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)141
AbstractionBase
Likelihood of exploit-

Vulnerabilities mapped to CWE-248

141 vulnerabilities642% increase year over year

No data

No vulnerability data in CISA KEV for CWE-248

Official definition

ByMitre CWE

An exception is thrown from a function, but it is not caught.

When an exception is not caught, it may cause the program to crash or expose sensitive information.

Characteristics

Modes of introduction

  • Implementation

Common consequences

ImpactScopeExplanation
DoS: Crash, Exit, or Restart, Read Application DataAvailability, ConfidentialityAn uncaught exception could cause the system to be placed in a state that could lead to a crash, exposure of sensitive information or other unintended behaviors.

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

Sources (2)

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