Falhas do tipo CWE-20

5.399 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-2025-59228HIGHMicrosoft SharePoint Remote Code Execution VulnerabilityEPSS 1.4%CVE-2020-3527HIGHCisco Catalyst 9200 Series Switches Jumbo Frame Denial of Service VulnerabilityEPSS 1.4%CVE-2019-15261HIGHCisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service VulnerabilityEPSS 1.4%CVE-2022-1727HIGHImproper Input Validation in jgraph/drawioEPSS 1.4%CVE-2024-9042MEDIUMThis CVE affects only Windows worker nodes. Your worker node is vulnerable to this issue if it is running one of the affected versions listeEPSS 1.4%CVE-2023-30449HIGHIBM Db2 denial of serviceEPSS 1.4%CVE-2018-16561HIGHA vulnerability has been identified in SIMATIC S7-300 CPUs (All versions < V3.X.16). The affected CPUs improperly validate S7 communication EPSS 1.4%CVE-2023-30445HIGHIBM Db2 denial of serviceEPSS 1.4%CVE-2024-31862MEDIUMApache Zeppelin: Denial of service with invalid notebook nameEPSS 1.4%CVE-2024-45058HIGHPrivilege escalation in i-EducarEPSS 1.4%CVE-2024-7014HIGHImproper multimedia file attachment validation in Telegram for Android appEPSS 1.4%CVE-2018-12474MEDIUMCrafted service parameters allows to induce unexpected behaviour in obs-service-tar_scmEPSS 1.4%CVE-2018-10843HIGHsource-to-image component of Openshift Container Platform before versions atomic-openshift 3.7.53, atomic-openshift 3.9.31 is vulnerable to EPSS 1.4%CVE-2024-26189HIGHSecure Boot Security Feature Bypass VulnerabilityEPSS 1.4%CVE-2019-1905MEDIUMCisco Email Security Appliance GZIP Content Filter Bypass VulnerabilityEPSS 1.4%CVE-2020-7849HIGHUPRISM CURIX arbitrary code execution vulnerabilityEPSS 1.4%CVE-2024-3884HIGHUndertow: outofmemory when parsing form data encoding with application/x-www-form-urlencodedEPSS 1.4%CVE-2019-1678MEDIUMCisco Meeting Server Denial of Service VulnerabilityEPSS 1.4%CVE-2023-30448MEDIUMIBM Db2 denial of serviceEPSS 1.4%CVE-2025-12543CRITICALUndertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrfEPSS 1.4%