Weaknesses of type CWE-20

5,456 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-2026-21101HIGHImproper input validation in DualDAR driver prior to SMR Sep-2026 Release 1 allows local privileged attackers to potentially execute arbitraEPSS 0.1%CVE-2025-24512MEDIUMImproper input validation for some Intel(R) PROSet/Wireless WiFi Software for Windows before version 23.160 within Ring 2: Device Drivers maEPSS 0.1%CVE-2022-23432MEDIUMAn improper input validation in SMC_SRPMB_WSM handler of RPMB ldfw prior to SMR Feb-2022 Release 1 allows arbitrary memory write and code exEPSS 0.1%CVE-2022-33690MEDIUMImproper input validation in Contacts Storage prior to SMR Jul-2022 Release 1 allows attacker to access arbitrary file.EPSS 0.1%CVE-2021-25503MEDIUMImproper input validation vulnerability in HDCP prior to SMR Nov-2021 Release 1 allows attackers to arbitrary code execution.EPSS 0.1%CVE-2017-15832HIGHBuffer overwrite due to improper input validation in WLAN hostEPSS 0.1%CVE-2022-24000LOWPendingIntent hijacking vulnerability in DataUsageReminderReceiver prior to SMR Feb-2022 Release 1 allows local attackers to access media fiEPSS 0.1%CVE-2022-33300HIGHImproper input validation in Automotive Android OSEPSS 0.1%CVE-2023-24853HIGHImproper Input Validation in HLOSEPSS 0.1%CVE-2024-51511MEDIUMVulnerability of parameter type not being verified in the WantAgent module Impact: Successful exploitation of this vulnerability may affect EPSS 0.1%CVE-2024-51512MEDIUMVulnerability of parameter type not being verified in the WantAgent module Impact: Successful exploitation of this vulnerability may affect EPSS 0.1%CVE-2026-13955LOWInsufficient validation of untrusted input in CustomTabs in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to perfEPSS 0.1%CVE-2026-17860LOWInsufficient validation of untrusted input in Mobile in Google Chrome on Android prior to 151.0.7922.72 allowed a local attacker to spoof thEPSS 0.1%CVE-2023-21657HIGHImproper Input Validation in AudioEPSS 0.1%CVE-2026-0014MEDIUMIn isPackageNullOrSystem of AppOpsService.java, there is a possible persistent denial of service due to improper input validation. This coulEPSS 0.1%CVE-2024-54101MEDIUMDenial of service (DoS) vulnerability in the installation module Impact: Successful exploitation of this vulnerability will affect availabilEPSS 0.1%CVE-2023-21656HIGHImproper Input Validation in WLAN HOSTEPSS 0.1%CVE-2022-23999LOWPendingIntent hijacking vulnerability in CpaReceiver prior to SMR Feb-2022 Release 1 allows local attackers to access media files without peEPSS 0.1%CVE-2024-51520MEDIUMVulnerability of input parameters not being verified in the HDC module Impact: Successful exploitation of this vulnerability may affect avaiEPSS 0.1%CVE-2024-45577HIGHImproper Input Validation in Camera DriverEPSS 0.1%