Falhas do tipo CWE-754

508 resultados

Falta de validação de condições excepcionais

A fraqueza ocorre quando o software não valida ou valida incorretamente situações anômalas que raramente acontecem durante a operação normal. O desenvolvedor assume que certas condições 'nunca vão acontecer', deixando o código vulnerável quando elas de fato ocorrem — seja por entrada malformada, estado corrompido ou cenários edge case não previstos.

Exemplo

Um parser JSON que só testa o caminho feliz: carrega e processa um JSON válido, mas quando recebe um arquivo com caracteres especiais, tamanho excepcional ou estrutura quebrada, falha silenciosamente ou causa comportamento indefinido em vez de rejeitar explicitamente o entrada inválida.

Como mitigar

Sempre validar entradas e estados, não presumir cenários 'impossíveis': use try-catch, verificações de limites, e testes que explorem casos anormais (fuzzing, boundary testing). Falhe de forma segura e explícita — nunca em silêncio.

CVE-2024-43435MEDIUMMoodle: can create global glossary without being adminEPSS 0.3%CVE-2024-30397HIGHJunos OS: An invalid certificate causes a Denial of Service in the Internet Key Exchange (IKE) processEPSS 0.3%CVE-2026-45678HIGHOpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloadsEPSS 0.3%CVE-2026-100296HIGHImproper Check for Unusual or Exceptional Conditions in Anjvision YSSD-RTMP-H5EPSS 0.3%CVE-2026-102077HIGHJunos OS: MX Series with SPC3: In a source NAT scenario malformed packets will lead to resource leaks and eventually traffic stopsEPSS 0.3%CVE-2025-14322HIGHSandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL componentEPSS 0.3%CVE-2025-41241MEDIUMDenial-of-service vulnerabilityEPSS 0.3%CVE-2026-33790HIGHJunos OS: SRX Series: In a NAT64 configuration, receipt of a specific, malformed ICMPv6 packet will cause the srxpfe process to crash and restart.EPSS 0.3%CVE-2026-47216HIGHTypesense: Unauthenticated Denial of Service in the Typesense /multi_search EndpointEPSS 0.3%CVE-2022-22217MEDIUMJunos OS: QFX10K Series: Denial of Service (DoS) upon receipt of crafted MLD packets on multi-homing ESI in VXLANEPSS 0.3%CVE-2026-0241MEDIUMTrust Protection Foundation: Multiple Authorization Bypass VulnerabilitiesEPSS 0.3%CVE-2026-2801HIGHIncorrect boundary conditions in the JavaScript: WebAssembly componentEPSS 0.3%CVE-2025-58354MEDIUMKata Containers coco-tdx malicious host can circumvent initdata verificationEPSS 0.3%CVE-2024-47503HIGHJunos OS: SRX4600 and SRX5000 Series: Sequence of specific PIM packets causes a flowd crashEPSS 0.3%CVE-2026-106346HIGHImproper state validation in DevTools in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially execute arbitrary codEPSS 0.3%CVE-2026-13411MEDIUMNull condition in Playbooks import crashes the pluginEPSS 0.3%CVE-2025-10532MEDIUMIncorrect boundary conditions in the JavaScript: GC componentEPSS 0.3%CVE-2025-71413MEDIUMIn CPDLC, Malformed or Out of Sequence Frames Can Cause ResetsEPSS 0.3%CVE-2025-0128HIGHPAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted PacketEPSS 0.3%CVE-2026-79072HIGHImproper state validation in Performance in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially read memory insideEPSS 0.3%