Falhas do tipo CWE-20

5.418 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-2026-21229HIGHPower BI Remote Code Execution VulnerabilityEPSS 0.9%CVE-2020-5321HIGHDell EMC OpenManage Enterprise (OME) versions prior to 3.2 and OpenManage Enterprise-Modular (OME-M) versions prior to 1.10.00 contain an imEPSS 0.9%CVE-2023-27559MEDIUMIBM Db2 denial of serviceEPSS 0.9%CVE-2023-42805HIGHquinn-proto Denial of Service vulnerabilityEPSS 0.9%CVE-2026-16139HIGHArbitrary file write via path traversal in Progress ShareFile Storage Zones Controller potentially leading to remote code executionEPSS 0.9%CVE-2021-4047—The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issueEPSS 0.9%CVE-2021-29432MEDIUMMalicious users could control the content of invitation emailsEPSS 0.9%CVE-2021-23044—On BIG-IP version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x andEPSS 0.9%CVE-2021-23033—On BIG-IP Advanced WAF and BIG-IP ASM version 16.x before 16.1.0x, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, aEPSS 0.9%CVE-2021-23028—On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, and 13.1.x before 13.1.4, when JSON content profiles are EPSS 0.9%CVE-2021-23036—On version 16.0.x before 16.0.1.2, when a BIG-IP ASM and DataSafe profile are configured on a virtual server, undisclosed requests can causeEPSS 0.9%CVE-2022-20784MEDIUMCisco Web Security Appliance Filter Bypass VulnerabilityEPSS 0.9%CVE-2021-23032—On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.4, and all versions of 13.1.x and 12.1.x, when a BIG-IP DNS systEPSS 0.9%CVE-2021-23045—On BIG-IP version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.xEPSS 0.9%CVE-2024-29998MEDIUMWindows Mobile Broadband Driver Remote Code Execution VulnerabilityEPSS 0.9%CVE-2024-30002MEDIUMWindows Mobile Broadband Driver Remote Code Execution VulnerabilityEPSS 0.9%CVE-2022-3095CRITICALIncorrect parsing of the backslash characters in Dart libraryEPSS 0.9%CVE-2024-38234MEDIUMWindows Networking Denial of Service VulnerabilityEPSS 0.9%CVE-2023-0284MEDIUMImproper validation of LDAP user IDsEPSS 0.9%CVE-2025-0422HIGHAuthenticated Remote Code Execution via ScriptVarEPSS 0.9%