Falhas do tipo CWE-20

5.845 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-2024-21312HIGH.NET Framework Denial of Service VulnerabilityEPSS 3.6%CVE-2023-5143MEDIUMD-Link DAR-7000 webmailattach.php Privilege EscalationEPSS 3.6%CVE-2020-15086CRITICALPotential Remote Code Execution in TYPO3 with mediace extensionEPSS 3.6%CVE-2017-16226—The static-eval module is intended to evaluate statically-analyzable expressions. In affected versions, untrusted user input is able to acceEPSS 3.5%CVE-2018-0228—A vulnerability in the ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remoteEPSS 3.5%CVE-2018-8867—In GE PACSystems RX3i CPE305/310 version 9.20 and prior, RX3i CPE330 version 9.21 and prior, RX3i CPE 400 version 9.30 and prior, PACSystemsEPSS 3.5%CVE-2024-38021HIGHMicrosoft Outlook Remote Code Execution VulnerabilityEPSS 3.5%CVE-2025-34115HIGHOP5 Monitor <= 7.1.9 Authenticated Command Execution via command_test.phpEPSS 3.5%CVE-2019-1650HIGHCisco SD-WAN Solution Arbitrary File Overwrite VulnerabilityEPSS 3.5%CVE-2020-14503—Advantech iView, versions 5.6 and prior, has an improper input validation vulnerability. Successful exploitation of this vulnerability couldEPSS 3.5%CVE-2020-3341HIGHClamAV PDF Parsing Denial of Service VulnerabilityEPSS 3.4%CVE-2018-0409—A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePrEPSS 3.4%CVE-2014-2360—OleumTech WIO Family Improper Input ValidationEPSS 3.4%CVE-2024-20733MEDIUM[ZS-VR-23-360] Adobe Acrobat Reader Parsing OTF font Denial-of-Service VulnerabilityEPSS 3.4%CVE-2019-1754HIGHCisco IOS XE Software Privilege Escalation VulnerabilityEPSS 3.4%CVE-2026-72867CRITICALDokploy: Incomplete fix of CVE-2026-45628: Command Injection via Unvalidated Branch Fields in Compose Deployment Pipeline (server-side regex missing in compose.ts)EPSS 3.4%CVE-2019-1755MEDIUMCisco IOS XE Software Command Injection VulnerabilityEPSS 3.4%CVE-2019-1894HIGHCisco Enterprise NFV Infrastructure Software Arbitrary File Read and Write VulnerabilityEPSS 3.4%CVE-2020-17532—Apache ServiceComb Yaml remote deserialization vulnerabilityEPSS 3.4%CVE-2018-10929HIGHA flaw was found in RPC request using gfs2_create_req in glusterfs server. An authenticated attacker could use this flaw to create arbitraryEPSS 3.4%