Weaknesses of type CWE-20

5,455 results

Validação inadequada de entrada

O software recebe dados do usuário ou de fontes externas, mas não verifica ou verifica de forma incompleta se esses dados têm as propriedades necessárias para processar com segurança. Isso permite que entradas malformadas, maliciosas ou inesperadas passem por controles e causem comportamentos indevidos — desde crashes até injeção de código.

Example

Uma aplicação web recebe um parâmetro numérico via GET, mas não valida se é realmente um número inteiro válido antes de usá-lo em uma consulta SQL. Um atacante envia um valor com caracteres especiais (ex: `1' OR '1'='1`), conseguindo injetar código SQL direto no banco de dados.

How to mitigate

Implemente validação rigorosa na entrada: defina o tipo, formato, comprimento e intervalo esperados; rejeite tudo que não se encaixe. Use listas de caracteres permitidos ('whitelist'), escape de dados para o contexto específico (SQL, HTML, URL) e bibliotecas de validação consolidadas. Nunca confie em dados do cliente.

CVE-2021-33161HIGHImproper input validation in some Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware may allow a privilEPSS 0.2%CVE-2021-31360HIGHJunos OS and Junos OS Evolved: Denial of Service vulnerability in local file processingEPSS 0.2%CVE-2025-54327MEDIUMAn issue was discovered in VTS in Samsung Mobile Processor and Wearable Processor Exynos 1280, 2200, 1380, W920, W930, W1000. Improper inputEPSS 0.2%CVE-2020-10054—A vulnerability has been identified in SIMATIC RTLS Locating Manager (All versions < V2.12). The affected application does not properly handEPSS 0.2%CVE-2025-4680HIGHImproper Input Validation vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Exploiting Incorrectly Configured AccEPSS 0.2%CVE-2022-32486HIGHDell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerabiliEPSS 0.2%CVE-2022-32492HIGHDell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerabiliEPSS 0.2%CVE-2026-12017LOWInappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderEPSS 0.2%CVE-2026-11244LOWInsufficient validation of untrusted input in WebAuthentication in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had coEPSS 0.2%CVE-2026-21070MEDIUMImproper input validation in Samsung Message prior to SMR Aug-2026 Release 1 allows physical attackers to access sensitive information.EPSS 0.2%CVE-2024-54121MEDIUMStartup control vulnerability in the ability module Impact: Successful exploitation of this vulnerability may cause features to perform abnoEPSS 0.2%CVE-2026-21060MEDIUMImproper input validation in Samsung Contacts prior to SMR Aug-2026 Release 1 allows physical attackers to access data across multiple user EPSS 0.2%CVE-2025-21477HIGHImproper Input Validation in ModemEPSS 0.2%CVE-2022-24379HIGHImproper input validation in some Intel(R) Server System M70KLP Family BIOS firmware before version 01.04.0029 may allow a privileged user tEPSS 0.2%CVE-2024-31153MEDIUMImproper input validation for some Intel(R) QuickAssist Technology software before version 2.2.0 may allow an authenticated user to potentiaEPSS 0.2%CVE-2023-39411MEDIUMImproper input validationation for some Intel Unison software may allow a privileged user to potentially enable denial of service via local EPSS 0.2%CVE-2023-39537HIGHImproper input validation in BIOS TCG2EPSS 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%