Falhas do tipo CWE-20

5.429 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-2021-26251MEDIUMImproper input validation in the Intel(R) Distribution of OpenVINO(TM) Toolkit may allow an authenticated user to potentially enable denial EPSS 0.6%CVE-2024-33066CRITICALImproper Input Validation in WLAN Resource ManagerEPSS 0.6%CVE-2025-24060HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-20527MEDIUMImproper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading toEPSS 0.6%CVE-2025-24074HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-32721HIGHStored XSS in Maps elementEPSS 0.6%CVE-2026-55124MEDIUMMicrosoft Word Information Disclosure VulnerabilityEPSS 0.6%CVE-2025-26781HIGHAn issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330,EPSS 0.6%CVE-2026-33285HIGHLiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process CrashEPSS 0.6%CVE-2025-24062HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-6915CRITICALJFrog Artifactory Cache PoisoningEPSS 0.6%CVE-2022-36351MEDIUMImproper input validation in some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi software may allow an unauthenticated user to potentiallEPSS 0.6%CVE-2025-24073HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-20525MEDIUMInsufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory outside the bounds of a mapped reEPSS 0.6%CVE-2025-24058HIGHWindows DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-27932MEDIUMDeno's improper suffix match testing for DENO_AUTH_TOKENSEPSS 0.6%CVE-2024-0793HIGHKube-controller-manager: malformed hpa v1 manifest causes crashEPSS 0.6%CVE-2023-30450MEDIUMrpk in Redpanda before 23.1.2 mishandles the redpanda.rpc_server_tls field, leading to (for example) situations in which there is a data typEPSS 0.6%CVE-2025-21235HIGHWindows PrintWorkflowUserSvc Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-40720HIGHCHANGING Information Technology TCBServiSign Windows Version - Improper Input ValidationEPSS 0.6%