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-2024-33657HIGHSmm Callout in SmmComputrace ModuleEPSS 0.2%CVE-2026-11038MEDIUMInsufficient policy enforcement in Subresource Integrity in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass contentEPSS 0.2%CVE-2024-24981HIGHImproper input validation in PfrSmiUpdateFw driver in UEFI firmware for some Intel(R) Server M50FCP Family products may allow a privileged uEPSS 0.2%CVE-2023-22379MEDIUMImproper input validation in some Intel(R) Server Board BMC firmware before version 2.90 may allow a privileged user to enable information dEPSS 0.2%CVE-2024-22015MEDIUMImproper input validation for some Intel(R) DLB driver software before version 8.5.0 may allow an authenticated user to potentially denial oEPSS 0.2%CVE-2026-21487MEDIUMiccDEV has Out-of-bounds Read, Use of Out-of-range Pointer Offset and Improper Input ValidationEPSS 0.2%CVE-2026-20686MEDIUMThis issue was addressed with improved input validation. This issue is fixed in iOS 26.3 and iPadOS 26.3. An app may be able to access sensiEPSS 0.2%CVE-2026-28821HIGHA validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. ThEPSS 0.2%CVE-2026-11682HIGHInappropriate implementation in Views in Google Chrome on Linux prior to 149.0.7827.103 allowed a remote attacker who had compromised the reEPSS 0.2%CVE-2022-4574MEDIUM An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated prEPSS 0.2%CVE-2026-9980MEDIUMInsufficient validation of untrusted input in Printing in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromiseEPSS 0.2%CVE-2022-40233MEDIUMIBM AIX denial of serviceEPSS 0.2%CVE-2022-43848MEDIUMIBM AIX denial of serviceEPSS 0.2%CVE-2022-43849MEDIUMIBM AIX denial of serviceEPSS 0.2%CVE-2026-95897MEDIUMDask Loader core.py from_npy_stack deserializationEPSS 0.2%CVE-2026-95928MEDIUMrecommenders-team recommenders Dict Loading mind_iterator.py pickle.load deserializationEPSS 0.2%CVE-2023-21501HIGHImproper input validation vulnerability in mPOS fiserve trustlet prior to SMR May-2023 Release 1 allows local attackers to execute arbitraryEPSS 0.2%CVE-2023-2961LOWA segmentation fault flaw was found in the Advancecomp package. This may lead to decreased availability.EPSS 0.2%CVE-2025-54564HIGHuploadsm in ChargePoint Home Flex 5.5.4.13 does not validate a user-controlled string for bz2 decompression, which allows command execution EPSS 0.2%CVE-2023-26587HIGHImproper input validation for the Intel(R) Easy Streaming Wizard software may allow an authenticated user to potentially enable escalation oEPSS 0.2%