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-2026-11098MEDIUMInsufficient validation of untrusted input in GPU in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the EPSS 0.2%CVE-2026-11287MEDIUMInsufficient policy enforcement in Navigation in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromisEPSS 0.2%CVE-2024-25942MEDIUMDell PowerEdge Server BIOS contains an Improper SMM communication buffer verification vulnerability. A physical high privileged attacker couEPSS 0.2%CVE-2026-14080MEDIUMInsufficient validation of untrusted input in TabSwitcher in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker to byEPSS 0.2%CVE-2026-17901MEDIUMInsufficient validation of untrusted input in Sharing in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker to bypassEPSS 0.2%CVE-2026-87469MEDIUMImproper input validation in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into aEPSS 0.2%CVE-2024-43445MEDIUMMissing X-Content-Type-Options: nosniff Header Allows MIME Type SniffingEPSS 0.2%CVE-2026-11029HIGHInsufficient validation of untrusted input in Drag and Drop in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker whoEPSS 0.2%CVE-2026-79151MEDIUMImproper input validation in Safebrowsing in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass system access restrictEPSS 0.2%CVE-2025-24504MEDIUMAn improper input validation the CSRF filter results in unsanitized user input written to the application logs.EPSS 0.2%CVE-2025-43299MEDIUMA denial-of-service issue was addressed with improved validation. This issue is fixed in iOS 18.7 and iPadOS 18.7, macOS Sequoia 15.7, macOSEPSS 0.2%CVE-2026-13939LOWInsufficient validation of untrusted input in WebShare in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker who had EPSS 0.2%CVE-2024-27386MEDIUMA vulnerability was discovered in the slsi_handle_nan_rx_event_log_ind function in Samsung Mobile Processor Exynos 1380 and Exynos 1480 relaEPSS 0.2%CVE-2025-30648HIGHJunos OS and Junos OS Evolved: Receipt of a specifically malformed DHCP packet causes jdhcpd process to crashEPSS 0.2%CVE-2024-27385MEDIUMA vulnerability was discovered in the slsi_handle_nan_rx_event_log_ind function in Samsung Mobile Processor Exynos 1380 and Exynos 1480 relaEPSS 0.2%CVE-2023-43570MEDIUM A potential vulnerability was reported in the SMI callback function of the OemSmi driver that may allow a local attacker with elevated permEPSS 0.2%CVE-2021-1450MEDIUMCisco AnyConnect Secure Mobility Client Denial of Service VulnerabilityEPSS 0.2%CVE-2026-10916MEDIUMInsufficient validation of untrusted input in DevTools in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromisedEPSS 0.2%CVE-2022-33176HIGHImproper input validation in BIOS firmware for some Intel(R) NUC 11 Performance kits and Intel(R) NUC 11 Performance Mini PCs before versionEPSS 0.2%CVE-2021-26370—Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allEPSS 0.2%