Fallos del tipo CWE-20

5439 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2026-8759MEDIUMxiandafu beetl SpELFunction SpELFunction.java expression language injectionEPSS 0.5%CVE-2024-22165MEDIUMDenial of Service in Splunk Enterprise Security of the Investigations manager through Investigation creationEPSS 0.5%CVE-2023-44192HIGHJunos OS: QFX5000 Series: DMA memory leak is observed when specific DHCP packets are transmitted over pseudo-VTEPEPSS 0.5%CVE-2026-33287HIGHLiquidJS has Exponential Memory Amplification through its replace_first Filter $& PatternEPSS 0.5%CVE-2023-44185HIGHJunos OS and Junos OS Evolved: In an BGP scenario RPD crashes upon receiving and processing a specific malformed ISO VPN BGP UPDATE packetEPSS 0.5%CVE-2021-0175MEDIUMImproper Validation of Specified Index, Position, or Offset in Input in firmware for some Intel(R) PROSet/Wireless Wi-Fi in multiple operatiEPSS 0.5%CVE-2021-0183MEDIUMImproper Validation of Specified Index, Position, or Offset in Input in software for some Intel(R) PROSet/Wireless Wi-Fi in multiple operatiEPSS 0.5%CVE-2026-63335MEDIUMRabbitMQ Java client malformed body frame triggers raw command assembler exceptionEPSS 0.5%CVE-2021-0165MEDIUMImproper input validation in firmware for Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and Killer(TM) Wi-Fi in Windows 10 anEPSS 0.5%CVE-2026-45678HIGHOpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloadsEPSS 0.5%CVE-2024-36740HIGHAn issue in OneFlow-Inc. Oneflow v0.9.1 allows attackers to cause a Denial of Service (DoS) when index as a negative number exceeds the rangEPSS 0.5%CVE-2024-22054HIGHA malformed discovery packet sent by a malicious actor with preexisting access to the network could interrupt the functionality of device maEPSS 0.5%CVE-2024-36734HIGHImproper input validation in OneFlow-Inc. Oneflow v0.9.1 allows attackers to cause a Denial of Service (DoS) via inputting a negative value EPSS 0.5%CVE-2021-0172MEDIUMImproper input validation in firmware for some Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and some Killer(TM) Wi-Fi in WinEPSS 0.5%CVE-2024-36737HIGHImproper input validation in OneFlow-Inc. Oneflow v0.9.1 allows attackers to cause a Denial of Service (DoS) via inputting a negative value EPSS 0.5%CVE-2021-0174MEDIUMImproper Use of Validation Framework in firmware for some Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and some Killer(TM) WEPSS 0.5%CVE-2021-0173MEDIUMImproper Validation of Consistency within input in firmware for some Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and some KEPSS 0.5%CVE-2025-5680MEDIUMShenzhen Dashi Tongzhou Information Technology AgileBPM Groovy Script SysScriptController.java executeScript deserializationEPSS 0.5%CVE-2025-20154HIGHCisco IOS, IOS XE and IOS XR Software TWAMP Denial of Service VulnerabilityEPSS 0.5%CVE-2024-20495HIGHA vulnerability in the Remote Access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTDEPSS 0.5%