Fallos del tipo CWE-20

5455 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2026-47664HIGHPathling: $import-pnp operation enables authenticated SSRF, credential leakage, and warehouse data poisoningEPSS 0.2%CVE-2023-39536HIGHImproper input validation in BIOS OFBDEPSS 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-2025-3677MEDIUMlm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deserializationEPSS 0.2%CVE-2025-3165MEDIUMthu-pacman chitu backend.py torch.load deserializationEPSS 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-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-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-2022-34393HIGH Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerabilEPSS 0.2%CVE-2026-17893MEDIUMInsufficient validation of untrusted input in Updater in Google Chrome on Mac prior to 151.0.7922.72 allowed a remote attacker who had comprEPSS 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-2025-46266MEDIUMUnauthenticated Transmission of Data in NomadBranch.exeEPSS 0.2%CVE-2026-17806MEDIUMInsufficient 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-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-2026-7962MEDIUMInsufficient policy enforcement in DirectSockets in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform arbitrary readEPSS 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-2026-7953MEDIUMInsufficient validation of untrusted input in Omnibox in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to inject arbitrary EPSS 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%