Falhas do tipo CWE-20

5.427 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-2024-29008MEDIUMApache CloudStack: The extraconfig feature can be abused to load hypervisor resources on a VM instanceEPSS 0.6%CVE-2025-27517CRITICALVolt Allows RCE Via User-Crafted RequestsEPSS 0.6%CVE-2024-55653MEDIUMpwndoc's UnhandledPromiseRejection on audits causes Denial of Service (DoS)EPSS 0.6%CVE-2026-21258MEDIUMMicrosoft Excel Information Disclosure VulnerabilityEPSS 0.6%CVE-2023-28291HIGHRaw Image Extension Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-26095—ASQ in Stormshield Network Security (SNS) 4.3.15 before 4.3.16 and 4.6.x before 4.6.3 allows a crash when analysing a crafted SIP packet.EPSS 0.6%CVE-2025-2689MEDIUMyiisoft Yii2 SortableIterator.php getIterator deserializationEPSS 0.6%CVE-2022-27897MEDIUMPalantir Gotham included an endpoint that would log arbitrary sized zip files. EPSS 0.6%CVE-2023-20530HIGHInsufficient input validation of BIOS mailbox messages in SMU may result in out-of-bounds memory reads potentially resulting in a denial of EPSS 0.6%CVE-2026-54234HIGHvLLM: Remote DoS in vLLM via Invalid Recovered Token ReinjectionEPSS 0.6%CVE-2023-20522HIGHInsufficient input validation in ASP may allow an attacker with a malicious BIOS to potentially cause a denial of service. EPSS 0.6%CVE-2022-27892MEDIUMPalantir Gotham included an endpoint that would log arbitrary sized payloads. EPSS 0.6%CVE-2025-31240HIGHThis issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.5, macOS Sonoma 14.7.6, macOS Ventura 13.7.6. MountinEPSS 0.6%CVE-2021-1249MEDIUMCisco Data Center Network Manager VulnerabilitiesEPSS 0.6%CVE-2021-1250MEDIUMCisco Data Center Network Manager VulnerabilitiesEPSS 0.6%CVE-2026-44482CRITICALsoundcloud-rpc: Remote Code Execution via XSS in Track TitleEPSS 0.6%CVE-2021-1253MEDIUMCisco Data Center Network Manager VulnerabilitiesEPSS 0.6%CVE-2024-0031CRITICALIn attp_build_read_by_type_value_cmd of att_protocol.cc , there is a possible out of bounds write due to improper input validation. This couEPSS 0.6%CVE-2024-9257MEDIUMLogsign Unified SecOps Platform delete_gsuite_key_file Input Validation Arbitrary File Deletion VulnerabilityEPSS 0.6%CVE-2023-22491HIGHgatsby-transformer-remark vulnerable to unsanitized JavaScript code injection EPSS 0.6%