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-2021-0185HIGHImproper input validation in the firmware for some Intel(R) Server Board M10JNP Family before version 7.216 may allow a privileged user to pEPSS 0.2%CVE-2023-30559MEDIUMWireless Card Firmware Improperly SignedEPSS 0.2%CVE-2023-45176MEDIUMIBM App Connect Enterprise and IBM Integration Bus denial of serviceEPSS 0.2%CVE-2022-3675LOWFedora CoreOS supports setting a GRUB bootloader password using a Butane config. When this feature is enabled, GRUB requires a password to aEPSS 0.2%CVE-2024-32859HIGHDell Client Platform BIOS contains an Improper Input Validation vulnerability in an externally developed component. A high privileged attackEPSS 0.2%CVE-2023-21502MEDIUMImproper input validation vulnerability in FactoryTest application prior to SMR May-2023 Release 1 allows local attackers to get privilege eEPSS 0.2%CVE-2026-11261MEDIUMInappropriate implementation in PDF in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer proceEPSS 0.2%CVE-2022-29466HIGHImproper input validation in firmware for Intel(R) SPS before version SPS_E3_04.01.04.700.0 may allow an authenticated user to potentially eEPSS 0.2%CVE-2026-72711MEDIUMLean 4 before 4.32.2 Kernel Accepts Opaque Declaration With an Unbound Free VariableEPSS 0.2%CVE-2026-11220MEDIUMInsufficient validation of untrusted input in Navigation in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromisEPSS 0.2%CVE-2024-32858HIGHDell Client Platform BIOS contains an Improper Input Validation vulnerability in an externally developed component. A high privileged attackEPSS 0.2%CVE-2024-32860HIGHDell Client Platform BIOS contains an Improper Input Validation vulnerability in an externally developed component. A high privileged attackEPSS 0.2%CVE-2026-9157HIGHRemote Code Execution in Gmission Web FAXEPSS 0.2%CVE-2023-31035HIGHCVEEPSS 0.2%CVE-2026-10037HIGHSandbox Escape in Ubuntu OpenJDK Packages via xdg-desktop-portalEPSS 0.2%CVE-2026-59569HIGHAndroid ZCC VPN API method privilege escalationEPSS 0.2%CVE-2026-11223MEDIUMInsufficient validation of untrusted input in Network in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised EPSS 0.2%CVE-2026-11192MEDIUMInsufficient validation of untrusted input in Password Manager in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to perform EPSS 0.2%CVE-2025-27493CRITICALA vulnerability has been identified in SiPass integrated AC5102 (ACC-G2) (All versions < V6.4.9), SiPass integrated ACC-AP (All versions < VEPSS 0.2%CVE-2026-13006HIGHIncomplete protection against CVE-2025-11226EPSS 0.2%