Fallos del tipo CWE-20

5457 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-2026-28852MEDIUMA stack overflow was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4EPSS 0.2%CVE-2025-68134HIGHEVerest's use of assert functions can potentially lead to denial of serviceEPSS 0.2%CVE-2023-27373MEDIUMAn issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with aEPSS 0.2%CVE-2021-37663HIGHIncomplete validation in `QuantizeV2` in TensorFlowEPSS 0.2%CVE-2026-11189MEDIUMInsufficient validation of untrusted input in DevTools in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to iEPSS 0.2%CVE-2021-37692MEDIUMSegfault on strings tensors with mistmatched dimensions in TensorFlowEPSS 0.2%CVE-2023-22449HIGHImproper input validation in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable escalation of privilege via lEPSS 0.2%CVE-2023-29494HIGHImproper input validation in BIOS firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege EPSS 0.2%CVE-2026-7943MEDIUMInsufficient validation of untrusted input in ANGLE in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised thEPSS 0.2%CVE-2024-32485LOWImproper Input Validation in some Intel(R) VROC software before version 8.6.0.2003 may allow an authenticated user to potentially enable denEPSS 0.2%CVE-2025-20197MEDIUMA vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker with privilege level 15 to elevate privilegEPSS 0.2%CVE-2023-25520MEDIUM NVIDIA Jetson Linux Driver Package contains a vulnerability in nvbootctrl, where a privileged local attacker can configure invalid settingsEPSS 0.2%CVE-2022-34681MEDIUMNVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler, where improper input validatEPSS 0.2%CVE-2024-0112HIGHNVIDIA Jetson AGX Orin™ and NVIDIA IGX Orin software contain a vulnerability where an attacker can cause an improper input validation issue EPSS 0.2%CVE-2023-21453MEDIUMImproper input validation vulnerability in SoftSim TA prior to SMR Mar-2023 Release 1 allows local attackers access to protected data.EPSS 0.2%CVE-2023-45165MEDIUMIBM AIX denial of serviceEPSS 0.2%CVE-2023-28036MEDIUM Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user with administrator privileges may potenEPSS 0.2%CVE-2024-0285MEDIUMDsoftbus has an improper input validation vulnerabilityEPSS 0.2%CVE-2025-55301MEDIUMThe Scratch Channel Allows Username ModificationEPSS 0.2%CVE-2023-21428MEDIUMImproper input validation vulnerability in TelephonyUI prior to SMR Jan-2023 Release 1 allows attackers to configure Preferred Call. The patEPSS 0.2%