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-2023-39535HIGHImproper input validation in BIOS EPSS 0.2%CVE-2023-31008HIGHNVIDIA DGX H100 BMC contains a vulnerability in IPMI, where an attacker may cause improper input validation. A successful exploit of this vuEPSS 0.2%CVE-2025-3165MEDIUMthu-pacman chitu backend.py torch.load deserializationEPSS 0.2%CVE-2025-3677MEDIUMlm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deserializationEPSS 0.2%CVE-2023-39537HIGHImproper input validation in BIOS TCG2EPSS 0.2%CVE-2023-30434MEDIUMIBM Storage Scale denial of serviceEPSS 0.2%CVE-2024-57960HIGHInput verification vulnerability in the ExternalStorageProvider module Impact: Successful exploitation of this vulnerability may affect servEPSS 0.2%CVE-2022-34393HIGH Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerabilEPSS 0.2%CVE-2026-9979MEDIUMInsufficient validation of untrusted input in Input in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised tEPSS 0.2%CVE-2023-28402HIGHImproper input validation in some Intel(R) BIOS Guard firmware may allow a privileged user to potentially enable escalation of privilege viaEPSS 0.2%CVE-2026-17908MEDIUMInsufficient validation of untrusted input in Printing in Google Chrome on Windows prior to 151.0.7922.72 allowed a remote attacker who had EPSS 0.2%CVE-2025-46266MEDIUMUnauthenticated Transmission of Data in NomadBranch.exeEPSS 0.2%CVE-2026-13018MEDIUMInsufficient validation of untrusted input in Codecs in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to potentially perforEPSS 0.2%CVE-2026-17809MEDIUMInsufficient validation of untrusted input in Extensions in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromisEPSS 0.2%CVE-2025-43195MEDIUMAn issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in macOS SEPSS 0.2%CVE-2024-0161HIGHDell PowerEdge Server BIOS and Dell Precision Rack BIOS contain an Improper SMM communication buffer verification vulnerability. A local lowEPSS 0.2%CVE-2026-17736MEDIUMInsufficient validation of untrusted input in WebView in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker who had cEPSS 0.2%CVE-2024-40458HIGHAn issue in Ocuco Innovation Tracking.exe v.2.10.24.51 allows a local attacker to escalate privileges via the modification of TCP packets.EPSS 0.2%CVE-2026-17761MEDIUMInsufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker to injEPSS 0.2%CVE-2026-17906MEDIUMInsufficient validation of untrusted input in Bluetooth in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromiseEPSS 0.2%