Fallos del tipo CWE-20

5421 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-2021-44374HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44384HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44382HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44378HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44362HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44363HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44368HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44364HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44372HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44358HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44383HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2021-44365HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.1%CVE-2022-3171MEDIUMMemory handling vulnerability in ProtocolBuffers Java core and liteEPSS 1.1%CVE-2022-20750MEDIUMCisco Redundancy Configuration Manager for Cisco StarOS Software TCP Denial of Service VulnerabilityEPSS 1.1%CVE-2025-12945LOWImproper input validation in NETGEAR Nighthawk router R7000PEPSS 1.1%CVE-2022-36784CRITICALElsight – Elsight Halo Remote Code Execution (RCE)EPSS 1.1%CVE-2026-20812MEDIUMLDAP Tampering VulnerabilityEPSS 1.1%CVE-2024-8073CRITICALCommand Injection Vulnerability in Hillstone Networks Web Application FirewallEPSS 1.1%CVE-2022-31766HIGHA vulnerability has been identified in RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) (All versions < V7.1.2), RUGGEDCOM RM1224 LTE(4G) NAEPSS 1.1%CVE-2020-7848HIGHThe EFM ipTIME C200 IP Camera is affected by a Command Injection vulnerability in /login.cgi?logout=1 script. To exploit this vulnerability,EPSS 1.1%