Falhas do tipo CWE-20

5.439 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-2026-37458MEDIUMMissing input validation in the MP_REACH_NLRI component of FRRouting (FRR) stable/10.0 to stable/10.6 allows authenticated attackers to causEPSS 0.4%CVE-2026-21675CRITICALiccDEV has a Use After Free vulnerability in CIccCmm class via improper hint manager object deletionEPSS 0.4%CVE-2022-43562LOWHost Header Injection in Splunk EnterpriseEPSS 0.4%CVE-2025-20183MEDIUMCisco Secure Web Appliance Range Request Bypass VulnerabilityEPSS 0.4%CVE-2025-7099MEDIUMBoyunCMS Installation install2.php deserializationEPSS 0.4%CVE-2025-65561HIGHAn issue was discovered in function LocalNode.Sess in free5GC 4.1.0 allowing attackers to cause a denial of service or other unspecified impEPSS 0.4%CVE-2026-33882MEDIUMStatamic's Markdown preview endpoint exposes sensitive user dataEPSS 0.4%CVE-2023-30952MEDIUMFoundry Issues reporterPath phishing by parameter injectionEPSS 0.4%CVE-2026-54217MEDIUMTeamDavid: Stored XSS in web applicationEPSS 0.4%CVE-2021-4120HIGHsnapd could be made to bypass intended access restrictions through snap content interfaces and layout pathsEPSS 0.4%CVE-2021-39254MEDIUMA crafted NTFS image can cause an integer overflow in memmove, leading to a heap-based buffer overflow in the function ntfs_attr_record_resiEPSS 0.4%CVE-2025-41379MEDIUMInjection vulnerability in Iridium Certus 700EPSS 0.4%CVE-2024-34473MEDIUMAn issue was discovered in appmgr in O-RAN Near-RT RIC I-Release. An attacker could register an unintended RMR message type during xApp regiEPSS 0.4%CVE-2021-41133HIGHSandbox bypass via recent VFS-manipulating syscallsEPSS 0.4%CVE-2024-51392HIGHAn issue in OpenKnowledgeMaps Headstart v7 allows a remote attacker to escalate privileges via the url parameter of the getPDF.php componentEPSS 0.4%CVE-2023-25661MEDIUMDenial of Service in TensorFlowEPSS 0.4%CVE-2026-70319MEDIUMMicrosoft Office Word Information Disclosure VulnerabilityEPSS 0.4%CVE-2026-70320MEDIUMPowerpoint Information Disclosure VulnerabilityEPSS 0.4%CVE-2026-70323MEDIUMMicrosoft Office Information Disclosure VulnerabilityEPSS 0.4%CVE-2026-70322MEDIUMPowerpoint Information Disclosure VulnerabilityEPSS 0.4%