Fallos del tipo CWE-476

2572 resultados

Desreferência de ponteiro nulo autenticada remota

A aplicação tenta acessar um objeto ou endereço de memória que não foi inicializado ou foi definido como nulo, sem verificar essa condição antes. Um atacante autenticado consegue provocar esse acesso inválido enviando dados malformados ou inesperados, causando crash ou comportamento indefinido.

Ejemplo

Um endpoint autenticado de API recebe um ID de usuário, faz uma busca no banco que retorna nulo (usuário não existe) e tenta acessar diretamente campos desse objeto nulo sem validação — resultando em erro 500 ou travamento da aplicação.

Cómo mitigar

Sempre verificar se um objeto é nulo antes de usá-lo; usar análise estática (linters, SAST) para detectar acessos potenciais a nulos; validar e tratar casos onde dados esperados podem estar ausentes, mesmo que o usuário esteja autenticado.

CVE-2026-1975MEDIUMFree5GC pfcp_reports.go identityTriggerType null pointer dereferenceEPSS 0.6%CVE-2025-70954HIGHA Null Pointer Dereference vulnerability exists in the TON Virtual Machine (TVM) within the TON Blockchain before v2025.06. The issue is locEPSS 0.6%CVE-2026-78222HIGHNGINX ngx_http_js_module vulnerabilityEPSS 0.6%CVE-2025-58472LOWQsync CentralEPSS 0.6%CVE-2021-3739—A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the buEPSS 0.6%CVE-2024-42058HIGHA null pointer dereference vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions fEPSS 0.6%CVE-2025-21844HIGHsmb: client: Add check for next_buffer in receive_encrypted_standard()EPSS 0.6%CVE-2024-41883MEDIUMNull Pointer DereferenceEPSS 0.6%CVE-2021-4217—A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereferencEPSS 0.6%CVE-2022-31076MEDIUMMalicious Message can crash CloudCore in KubeEdgeEPSS 0.6%CVE-2026-97394HIGHkin-openapi: Nil-pointer dereference panic in openapi3filter for OpenAPI 3.1 array schemas missing itemsEPSS 0.6%CVE-2025-3122LOWWebAssembly wabt binary-reader-interp.cc BeginFunctionBody null pointer dereferenceEPSS 0.6%CVE-2024-8454MEDIUMPLANET Technology switch devices - Swctrl service DoS attackEPSS 0.6%CVE-2025-53011LOWMaterialX is Vulnerable to NULL Pointer Dereference due to Unchecked implGraphOutputEPSS 0.6%CVE-2020-18378MEDIUMA NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm iEPSS 0.6%CVE-2024-22099MEDIUMNULL pointer deference in rfcomm_check_security in Linux kernelEPSS 0.6%CVE-2026-76905HIGHkin-openapi openai3filter: nil-pointer panic in ConvertErrors on malformed multipart/form-data body enables unauthenticated DoSEPSS 0.6%CVE-2026-38976HIGHmrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in op_super() / OP_SUPER due to a missing runtime guard forEPSS 0.6%CVE-2026-18064HIGHNASA Core Flight System (cFS) Health & Safety (HS) Application NULL Pointer DereferenceEPSS 0.6%CVE-2026-15352HIGHNASA Core Flight System (cFS) Health & Safety (HS) Application NULL Pointer DereferenceEPSS 0.6%