Falhas do tipo CWE-20

5.451 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-2023-25865HIGHAdobe Substance 3D Stager OBJ File Parsing Memory Corruption Remote Code Execution VulnerabilityEPSS 0.3%CVE-2023-25867HIGHAdobe Substance 3D Stager PCX File Parsing Memory Corruption Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-26489MEDIUMImproper input validation in Netconf service in Infinera MTC-9EPSS 0.3%CVE-2023-43037MEDIUMIBM Maximo Application Suite improper access controlEPSS 0.3%CVE-2026-55256MEDIUMIn parsePartHeaders of multiple files, there is a possible persistent denial of service due to improper input validation. This could lead toEPSS 0.3%CVE-2026-76323MEDIUMSPL Risky Command Safeguards Bypass through the Job Details Dashboard in Splunk EnterpriseEPSS 0.3%CVE-2026-45615HIGHmouse07410/asn1c: 1-byte Heap Out-of-Bounds Read in `INTEGER_decode_oer` via Malformed OER PayloadEPSS 0.3%CVE-2025-3837MEDIUMImproper Input Validation vulnerability in the End of Life (EOL) OVA based connect componentEPSS 0.3%CVE-2025-11273MEDIUMLaChatterie Verger provider.ts redirectToAuthorization deserializationEPSS 0.3%CVE-2026-4451HIGHInsufficient validation of untrusted input in Navigation in Google Chrome prior to 146.0.7680.153 allowed a remote attacker who had compromiEPSS 0.3%CVE-2025-29646HIGHAn issue in upf in open5gs 2.7.2 and earlier allows a remote attacker to cause a Denial of Service via a crafted PFCP SessionEstablishmentReEPSS 0.3%CVE-2022-34345—Improper input validation in the firmware for some Intel(R) NUC Laptop Kits before version BC0076 may allow a privileged user to potentiallyEPSS 0.3%CVE-2026-3545CRITICALInsufficient data validation in Navigation in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform a sandbEPSS 0.3%CVE-2026-13806HIGHInsufficient validation of untrusted input in Accessibility in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had comproEPSS 0.3%CVE-2026-22046HIGHiccDEV has heap-buffer-overflow in CIccProfileXml::ParseBasic() at IccXML/IccLibXML/IccProfileXml.cppEPSS 0.3%CVE-2026-17686HIGHInsufficient validation of untrusted input in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromiseEPSS 0.3%CVE-2026-100652HIGHvLLM 0.22.0 through 0.23.0 Denial of Service via stop_token_idsEPSS 0.3%CVE-2026-23825HIGHUnauthenticated Denial-of-Service via Crafted Messages in a Network Protocol Handling ComponentEPSS 0.3%CVE-2026-19153HIGHInsufficient validation of untrusted input in Workers in Google Chrome prior to 151.0.7922.109 allowed a remote attacker who had compromisedEPSS 0.3%CVE-2026-100664HIGHNetty 4.2.2 through 4.2.17 HTTP/1 Host Header Authority ConfusionEPSS 0.3%