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-2026-28852MEDIUMA stack overflow was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4EPSS 0.2%CVE-2021-37663HIGHIncomplete validation in `QuantizeV2` in TensorFlowEPSS 0.2%CVE-2023-27373MEDIUMAn issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with aEPSS 0.2%CVE-2025-68134HIGHEVerest's use of assert functions can potentially lead to denial of serviceEPSS 0.2%CVE-2021-37692MEDIUMSegfault on strings tensors with mistmatched dimensions in TensorFlowEPSS 0.2%CVE-2026-7943MEDIUMInsufficient validation of untrusted input in ANGLE in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised thEPSS 0.2%CVE-2023-29494HIGHImproper input validation in BIOS firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege EPSS 0.2%CVE-2023-22449HIGHImproper input validation in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable escalation of privilege via lEPSS 0.2%CVE-2026-11189MEDIUMInsufficient validation of untrusted input in DevTools in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to iEPSS 0.2%CVE-2025-20197MEDIUMA vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker with privilege level 15 to elevate privilegEPSS 0.2%CVE-2024-0112HIGHNVIDIA Jetson AGX Orin™ and NVIDIA IGX Orin software contain a vulnerability where an attacker can cause an improper input validation issue EPSS 0.2%CVE-2023-25520MEDIUM NVIDIA Jetson Linux Driver Package contains a vulnerability in nvbootctrl, where a privileged local attacker can configure invalid settingsEPSS 0.2%CVE-2022-34681MEDIUMNVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler, where improper input validatEPSS 0.2%CVE-2023-45165MEDIUMIBM AIX denial of serviceEPSS 0.2%CVE-2023-21453MEDIUMImproper input validation vulnerability in SoftSim TA prior to SMR Mar-2023 Release 1 allows local attackers access to protected data.EPSS 0.2%CVE-2024-32485LOWImproper Input Validation in some Intel(R) VROC software before version 8.6.0.2003 may allow an authenticated user to potentially enable denEPSS 0.2%CVE-2023-28036MEDIUM Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user with administrator privileges may potenEPSS 0.2%CVE-2025-55301MEDIUMThe Scratch Channel Allows Username ModificationEPSS 0.2%CVE-2024-0285MEDIUMDsoftbus has an improper input validation vulnerabilityEPSS 0.2%CVE-2023-21428MEDIUMImproper input validation vulnerability in TelephonyUI prior to SMR Jan-2023 Release 1 allows attackers to configure Preferred Call. The patEPSS 0.2%