Fallos del tipo CWE-755

243 resultados

Tratamento inadequado de condições excepcionais

O código falha em capturar, validar ou responder corretamente a situações de erro ou exceção. Isso deixa o programa em estado inconsistente, pode expor informações sensíveis em mensagens de erro, ou permite que um atacante contorne controles de segurança explorando caminhos de exceção não previstos.

Ejemplo

Um sistema de login que lança uma exceção genérica quando o banco de dados falha, mas não a trata adequadamente — a stack trace é exibida na resposta HTTP, revelando arquitetura interna e caminhos do servidor. Ou um processamento de arquivo que não verifica se a leitura falhou antes de usar o conteúdo, causando comportamento indefinido.

Cómo mitigar

Sempre capture exceções esperadas com try-catch (ou equivalente na linguagem) e implemente tratamento específico para cada cenário de erro. Nunca expor stack traces ou detalhes técnicos ao usuário final; registre internamente e retorne mensagens genéricas. Valide o estado do programa após qualquer operação que possa falhar antes de prosseguir.

CVE-2021-0297MEDIUMJunos OS Evolved: BGP and LDP sessions with TCP MD5 authentication established with peers not configured for authenticationEPSS 0.7%CVE-2022-0023MEDIUMPAN-OS: Denial-of-Service (DoS) Vulnerability in DNS ProxyEPSS 0.7%CVE-2023-50728MEDIUMUnauthenticated Denial of Service in the octokit/webhooks libraryEPSS 0.7%CVE-2023-6267HIGHQuarkus: json payload getting processed prior to security checks when rest resources are used with annotations.EPSS 0.7%CVE-2024-30382HIGHJunos OS and Junos OS Evolved: RPD crash when CoS-based forwarding (CBF) policy is configuredEPSS 0.7%CVE-2023-25644MEDIUMDenial of Service Vulnerability in Some ZTE Mobile Internet ProductsEPSS 0.7%CVE-2023-45820MEDIUMDirectus crashes on invalid WebSocket messageEPSS 0.7%CVE-2025-8008HIGHRockwell Automation 1756-ENT2R, EN4TR, EN4TRXT VulnerabilityEPSS 0.7%CVE-2023-48232LOWFloating point Exception in adjust_plines_for_skipcol() in vimEPSS 0.7%CVE-2022-44030HIGHRedmine 5.x before 5.0.4 allows downloading of file attachments of any Issue or any Wiki page due to insufficient permission checks. DependiEPSS 0.7%CVE-2024-47489MEDIUMJunos OS Evolved: ACX Series: Receipt of specific transit protocol packets is incorrectly processed by the REEPSS 0.7%CVE-2021-38363HIGHAn issue was discovered in ONOS 2.5.1. In IntentManager, the install-requested intent (which causes an exception) remains in pendingMap (in EPSS 0.7%CVE-2023-36832HIGHJunos OS: MX Series: PFE crash upon receipt of specific packet destined to an AMS interfaceEPSS 0.6%CVE-2024-6594HIGHWatchGuard Firebox Single Sign-On Client Denial-of-ServiceEPSS 0.6%CVE-2024-21585MEDIUMJunos OS and Junos OS Evolved: BGP session flaps on NSR-enabled devices can cause rpd crashEPSS 0.6%CVE-2022-39380MEDIUMwire-webapp contains Improper Handling of Exceptional Conditions leading to a DoS via Markdown RenderingEPSS 0.6%CVE-2024-47609MEDIUMRemotely exploitable DoS in Tonic `<=v0.12.2`EPSS 0.6%CVE-2025-27465MEDIUMx86: Incorrect stubs exception handling for flags recoveryEPSS 0.6%CVE-2024-7521CRITICALIncomplete WebAssembly exception handing could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14,EPSS 0.6%CVE-2023-24510HIGHOn the affected platforms running EOS, a malformed DHCP packet might cause the DHCP relay agent to restart.EPSS 0.6%