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-2021-26404MEDIUMImproper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure. EPSS 0.2%CVE-2025-43472HIGHA validation issue was addressed with improved input sanitization. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS TEPSS 0.2%CVE-2023-21439HIGHImproper input validation vulnerability in UwbDataTxStatusEvent prior to SMR Feb-2023 Release 1 allows attackers to launch certain activitieEPSS 0.2%CVE-2021-37665HIGHIncomplete validation in MKL requantization in TensorFlowEPSS 0.2%CVE-2023-30440MEDIUMIBM PowerVM Hypervisor denial of serviceEPSS 0.2%CVE-2022-25976MEDIUMImproper input validation in the Intel(R) VROC software before version 7.7.6.1003 may allow an authenticated user to potentially enable deniEPSS 0.2%CVE-2024-31158HIGHImproper input validation in UEFI firmware in some Intel(R) Server Board S2600BP Family may allow a privileged user to potentially enable esEPSS 0.2%CVE-2024-31959HIGHAn issue was discovered in Samsung Mobile Processor Exynos 2200, Exynos 1480, Exynos 2400. It lacks a check for the validation of native hanEPSS 0.2%CVE-2022-23817HIGHInsufficient checking of memory buffer in AMD Secure Processor (ASP) Secure OS may allow an attacker with a malicious trusted application toEPSS 0.2%CVE-2022-34147HIGHImproper input validation in BIOS firmware for some Intel(R) NUC 9 Extreme Laptop Kits, Intel(R) NUC Performance Kits, Intel(R) NUC PerformaEPSS 0.2%CVE-2022-36339HIGHImproper input validation in firmware for Intel(R) NUC 8 Compute Element, Intel(R) NUC 11 Compute Element, Intel(R) NUC 12 Compute Element mEPSS 0.2%CVE-2026-11280MEDIUMInappropriate implementation in Signin in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to perform UI spoofing via aEPSS 0.2%CVE-2024-31154HIGHImproper input validation in UEFI firmware for some Intel(R) Server S2600BPBR may allow a privileged user to potentially enable escalation oEPSS 0.2%CVE-2021-25414—Improper sanitization of incoming intent in Samsung Contacts prior to SMR JUN-2021 Release 1 allows local attackers to copy or overwrite arbEPSS 0.2%CVE-2021-25485HIGHPath traversal vulnerability in FactoryAirCommnadManger prior to SMR Oct-2021 Release 1 allows attackers to write file as system UID via BT EPSS 0.2%CVE-2025-53471MEDIUMEmerson ValveLink Products Improper Input ValidationEPSS 0.2%CVE-2025-2223HIGHCWE-20: Improper Input Validation vulnerability exists that could cause a loss of Confidentiality, Integrity and Availability of engineeringEPSS 0.2%CVE-2026-60648HIGHVulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Web Content Management). Supported versions tEPSS 0.2%CVE-2026-11034MEDIUMInsufficient validation of untrusted input in Tab Group Sync in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker toEPSS 0.2%CVE-2024-28947HIGHImproper input validation in kernel mode driver for some Intel(R) Server Board S2600ST Family firmware before version 02.01.0017 may allow aEPSS 0.2%