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-2025-5090HIGHArista CloudVision Exchange Cluster Instability via Unexpected Switch MessagesEPSS 0.2%CVE-2026-22611LOWAWS SDK for .NET V4 adopted defense in depth enhancement for region parameter valueEPSS 0.2%CVE-2025-43293MEDIUMThe issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7, macOS Sonoma 14.8, macOS Tahoe 26. An appEPSS 0.2%CVE-2025-5089HIGHArista EOS SysDB Agent Denial of Service via Malformed CVX Client/Server MessagesEPSS 0.2%CVE-2026-8003MEDIUMInsufficient validation of untrusted input in TabGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spooEPSS 0.2%CVE-2022-34152HIGHImproper input validation in BIOS firmware for some Intel(R) NUC Boards, Intel(R) NUC Kits before version TY0070 may allow a privileged userEPSS 0.2%CVE-2025-12718MEDIUMQuick Contact Form <= 8.2.6 - Unauthenticated Open Mail RelayEPSS 0.2%CVE-2026-11146CRITICALInsufficient validation of untrusted input in Chromoting in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromisEPSS 0.2%CVE-2026-11056CRITICALInsufficient validation of untrusted input in SiteIsolation in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker whoEPSS 0.2%CVE-2026-11063CRITICALInsufficient validation of untrusted input in WebNN in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had comEPSS 0.2%CVE-2026-11119CRITICALInappropriate implementation in GPU in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromised the renEPSS 0.2%CVE-2023-45172MEDIUMIBM AIX denial of serviceEPSS 0.2%CVE-2026-10021HIGHInsufficient validation of untrusted input in USB in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary coEPSS 0.2%CVE-2026-11202HIGHInappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to potentially perfoEPSS 0.2%CVE-2022-30744MEDIUMDLL hijacking vulnerability in KiesWrapper in Samsung Kies prior to version 2.6.4.22043_1 allows attacker to execute arbitrary code.EPSS 0.2%CVE-2026-21690MEDIUMiccDEV has Type Confusion in CIccTagXmlTagData::ToXml()EPSS 0.2%CVE-2026-14073MEDIUMInsufficient validation of untrusted input in WebXR in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass navigation rEPSS 0.2%CVE-2026-11041HIGHInsufficient validation of untrusted input in Media in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had comEPSS 0.2%CVE-2026-11272HIGHInsufficient validation of untrusted input in Reading List in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker who convEPSS 0.2%CVE-2024-25942MEDIUMDell PowerEdge Server BIOS contains an Improper SMM communication buffer verification vulnerability. A physical high privileged attacker couEPSS 0.2%