Falhas do tipo CWE-20

5.462 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2022-20459MEDIUMIn (TBD) of (TBD), there is a possible way to redirect code execution due to improper input validation. This could lead to local escalation EPSS 0.1%CVE-2022-33729MEDIUMImproper restriction of broadcasting Intent in ConfirmConnectActivity of?NFC prior to SMR Aug-2022 Release 1 leaks MAC address of the connecEPSS 0.1%CVE-2026-56950MEDIUMIn validate_ns_buf of mbu_class.rs, there is a possible information disclosure due to improper input validation. This could lead to local inEPSS 0.1%CVE-2026-0018MEDIUMIn multiple functions of AccessibilityManagerService.java, there is a possible persistent denial of service due to improper input validationEPSS 0.1%CVE-2023-20645MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20651MEDIUMIn apu, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20648MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20647MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20644MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20649MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20646MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2026-21112MEDIUMImproper input validation in Samsung Tips prior to Android 17 allows local attackers to launch arbitrary activity with Samsung Tips privilegEPSS 0.1%CVE-2025-68970MEDIUMPermission verification bypass vulnerability in the media library module. Impact: Successful exploitation of this vulnerability may affect sEPSS 0.1%CVE-2024-20064HIGHIn wlan service, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege EPSS 0.1%CVE-2026-28638LOWIn multiple functions of XmpDataParser.java, there is a possible improper data sanitization due to a logic error in the code. This could leaEPSS 0.1%CVE-2025-48537HIGHIn multiple locations, there is a possible way to persistently DoS the device due to improper input validation. This could lead to local infEPSS 0.1%CVE-2026-45525LOWIn multiple locations, there is a possible improper data sanitization due to a logic error in the code. This could lead to local informationEPSS 0.1%CVE-2024-20056MEDIUMIn preloader, there is a possible escalation of privilege due to an insecure default value. This could lead to local escalation of privilegeEPSS 0.1%CVE-2026-11297HIGHInsufficient validation of untrusted input in Reader Mode in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to bypEPSS 0.1%CVE-2025-36929MEDIUMIn AreFencesRegistered of gxp_fence_manager.cc, there is a possible information leak due to improper input validation. This could lead to loEPSS 0.1%