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-2026-11158HIGHInsufficient validation of untrusted input in Downloads in Google Chrome on Mac prior to 149.0.7827.53 allowed a local attacker to potentialEPSS 0.1%CVE-2024-56190HIGHIn wl_update_hidden_ap_ie() of wl_cfgscan.c, there is a possible out of bounds write due to improper input validation. This could lead to loEPSS 0.1%CVE-2025-48601MEDIUMIn multiple locations, there is a possible permanent denial of service due to improper input validation. This could lead to local escalationEPSS 0.1%CVE-2024-32907HIGHIn memcall_add of memlog.c, there is a possible buffer overflow due to improper input validation. This could lead to local escalation of priEPSS 0.1%CVE-2023-48354MEDIUMIn telephone service, there is a possible improper input validation. This could lead to local information disclosure with no additional execEPSS 0.1%CVE-2025-48632HIGHIn setDisplayName of AssociationRequest.java, there is a possible way to cause CDM associations to persist after the user has disassociated EPSS 0.1%CVE-2025-26429MEDIUMIn collectOps of AppOpsService.java, there is a possible way to cause permanent DoS due to improper input validation. This could lead to locEPSS 0.1%CVE-2023-48346MEDIUMIn video decoder, there is a possible improper input validation. This could lead to local denial of service with no additional execution priEPSS 0.1%CVE-2026-0078HIGHIn setGlobalProxy of DevicePolicyManagerService.java, there is a possible desync in persistence due to improper input validation. This couldEPSS 0.1%CVE-2026-11035HIGHInappropriate implementation in Custom Tabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to perform privilegeEPSS 0.1%CVE-2023-52535MEDIUMIn vsp driver, there is a possible missing verification incorrect input. This could lead to local denial of service with no additional execuEPSS 0.1%CVE-2024-44094HIGHIn ppmp_protect_mfcfw_buf of code/drm_fw.c, there is a possible memory corruption due to improper input validation. This could lead to localEPSS 0.1%CVE-2026-0142MEDIUMIn iavb_parse_key_data of avb_rsa.c, there is a possible out of bounds read due to improper input validation. This could lead to local inforEPSS 0.1%CVE-2026-0199HIGHIn gf_ta_test_set_config of gf_ta_test.c, there is a possible out-of-bounds write due to improper input validation. This could lead to localEPSS 0.1%CVE-2026-0070MEDIUMIn multiple functions of DevicePolicyManagerService.java, there is a possible way to hide a system critical package due to improper input vaEPSS 0.1%CVE-2026-0085MEDIUMIn applySimpleFieldMaxSize of DataRowHandler.java, there is a possible way to insert a large contact name due to improper input validation. EPSS 0.1%CVE-2026-58834MEDIUMIn setPermissionGrantState of DevicePolicyManagerService.java, there is a possible persistent denial of service due to improper input validaEPSS —CVE-2026-105756MEDIUMvLLM: Loose `cache_salt` validation lets a single request kill EngineCore on LMCache-MP deployments — uncaught downstream `ValueError` denial of serviceEPSS —CVE-2026-101919HIGHHypershift: hypershift: unsanitized kubeconfig passthrough from tenant namespace to control planeEPSS —CVE-2026-105757MEDIUMvLLM: Structured-output request errors escape the request boundary and terminate the shared EngineCore — engine-fatal denial of service (3 sites)EPSS —