Falhas do tipo CWE-20

5.455 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2021-4210MEDIUMA potential vulnerability in the SMI callback function used in the NVME driver in some Lenovo Desktop, ThinkStation, and ThinkEdge models maEPSS 0.3%CVE-2024-7980HIGHInsufficient data validation in Installer in Google Chrome on Windows prior to 128.0.6613.84 allowed a local attacker to perform privilege eEPSS 0.3%CVE-2021-25401—Intent redirection vulnerability in Samsung Health prior to version 6.16 allows attacker to execute privileged action.EPSS 0.3%CVE-2021-4212MEDIUMA potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacEPSS 0.3%CVE-2026-102823HIGHrussh: Client-side channel-scoped Handler callbacks fire for channel IDs the client never openedEPSS 0.3%CVE-2022-47924MEDIUMArbitrary Code Execution using the validate function of csaf-validator-libEPSS 0.3%CVE-2024-36284MEDIUMImproper input validation in some Intel(R) Neural Compressor software before version v3.0 may allow an authenticated user to potentially enaEPSS 0.3%CVE-2020-1986MEDIUMSecdo: Local authenticated users can cause Windows system crashEPSS 0.3%CVE-2025-14606LOWtiny-rdm Tiny RDM Pickle Decoding pickle_convert.go pickle.loads deserializationEPSS 0.3%CVE-2026-86351MEDIUMMISP User Homepage Validation Allows Authenticated Open Redirect via Protocol-Relative URLEPSS 0.3%CVE-2026-23841CRITICALMovary vulnerable to Cross-site Scripting with `?categoryCreated=` paramEPSS 0.3%CVE-2026-17773MEDIUMInsufficient validation of untrusted input in Cast in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin daEPSS 0.3%CVE-2026-17706MEDIUMInsufficient validation of untrusted input in Media in Google Chrome on Windows prior to 151.0.7922.72 allowed a remote attacker who had comEPSS 0.3%CVE-2026-14116MEDIUMInsufficient validation of untrusted input in DevTools in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who convinced a useEPSS 0.3%CVE-2026-17700MEDIUMInsufficient validation of untrusted input in Actor in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised thEPSS 0.3%CVE-2026-8013MEDIUMInsufficient validation of untrusted input in FedCM in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to leak cross-origin dEPSS 0.3%CVE-2026-14045MEDIUMInsufficient validation of untrusted input in Network in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised EPSS 0.3%CVE-2026-8538MEDIUMInsufficient validation of untrusted input in GPU in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised theEPSS 0.3%CVE-2026-17767MEDIUMInsufficient validation of untrusted input in WebView in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker who had cEPSS 0.3%CVE-2026-17769MEDIUMInsufficient validation of untrusted input in Cast in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin daEPSS 0.3%