Fallos del tipo CWE-476

2332 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-2026-26457HIGHccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coap_dump_msg() function when procesEPSS 0.3%CVE-2026-26453HIGHccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coap_server_handle_session() functioEPSS 0.3%CVE-2024-37602MEDIUMAn issue was discovered in Mercedes Benz NTG (New Telematics Generation) 6 through 2021. A possible NULL pointer dereference in the Apple CaEPSS 0.3%CVE-2022-49928HIGHSUNRPC: Fix null-ptr-deref when xps sysfs alloc failedEPSS 0.3%CVE-2025-1632MEDIUMlibarchive bsdunzip.c list null pointer dereferenceEPSS 0.3%CVE-2023-20233MEDIUMA vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker EPSS 0.3%CVE-2021-33630MEDIUMNULL-ptr-deref in network schedEPSS 0.3%CVE-2026-45747HIGHSuricata lua/tls: null dereference in TlsGetCertInfoEPSS 0.3%CVE-2022-29206MEDIUMMissing validation results in undefined behavior in `SparseTensorDenseAdd` in TensorFlowEPSS 0.3%CVE-2025-47207MEDIUMFile Station 5EPSS 0.3%CVE-2025-53408LOWFile Station 5EPSS 0.3%CVE-2020-9085MEDIUMThere is a NULL pointer dereference vulnerability in some Huawei products. An attacker may send specially crafted POST messages to the affecEPSS 0.3%CVE-2025-52865LOWFile Station 5EPSS 0.3%CVE-2024-29489MEDIUMJerryscript 2.4.0 has SEGV at ./jerry-core/ecma/base/ecma-helpers.c:238:58 in ecma_get_object_type.EPSS 0.3%CVE-2023-21593MEDIUMAdobe InDesign SVG file NULL Pointer Dereference Application denial-of-serviceEPSS 0.3%CVE-2026-26828HIGHA NULL pointer dereference in the daap_reply_playlists function (src/httpd_daap.c) of owntone-server commit 3d1652d allows attackers to causEPSS 0.3%CVE-2026-18064HIGHNASA Core Flight System (cFS) Health & Safety (HS) Application NULL Pointer DereferenceEPSS 0.3%CVE-2025-11618MEDIUMInvalid Pointer Dereference when receiving UDP/IPv6 packets in FreeRTOS-Plus-TCPEPSS 0.3%CVE-2020-35504—A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guesEPSS 0.3%CVE-2025-65566HIGHA denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version upf-epc-pfcpiface:2.1.3-dev. When the UPF EPSS 0.3%