Fallos del tipo CWE-476

2331 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-2025-46404HIGHA denial of service vulnerability exists in the lasso_provider_verify_saml_signature functionality of Entr'ouvert Lasso 2.5.1. A specialEPSS 0.6%CVE-2025-24997MEDIUMDirectX Graphics Kernel File Denial of Service VulnerabilityEPSS 0.6%CVE-2024-41883MEDIUMNull Pointer DereferenceEPSS 0.6%CVE-2023-33307MEDIUMA null pointer dereference in Fortinet FortiOS before 7.2.5 and before 7.0.11, FortiProxy before 7.2.3 and before 7.0.9 allows attacker to dEPSS 0.6%CVE-2024-44853HIGHOpen Robotics Robotic Operating System 2 ROS2 navigation2 v.humble was discovered to contain a NULL pointer dereference via the component coEPSS 0.6%CVE-2024-44856HIGHOpen Robotics Robotic Operating System 2 ROS2 navigation2 v.humble was discovered to contain a NULL pointer dereference via the component naEPSS 0.6%CVE-2024-44855HIGHOpen Robotics Robotic Operating System 2 ROS2 navigation2 v.humble was discovered to contain a NULL pointer dereference via the component naEPSS 0.6%CVE-2024-44854HIGHOpen Robotics Robotic Operating System 2 ROS2 navigation2 v.humble was discovered to contain a NULL pointer dereference via the component smEPSS 0.6%CVE-2025-56363HIGHA null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, affecting the ReadRevisionAttribute functiEPSS 0.6%CVE-2025-2487MEDIUM389-ds-base: null pointer dereference leads to denial of serviceEPSS 0.6%CVE-2024-42491MEDIUMA malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is usedEPSS 0.6%CVE-2025-35966HIGHA null pointer dereference vulnerability exists in the CDB2SQLQUERY protocol buffer message handling of Bloomberg Comdb2 8.1. A specially crEPSS 0.6%CVE-2024-51738HIGHSunshine improperly enforces pairing protocol request orderEPSS 0.6%CVE-2025-48498HIGHA null pointer dereference vulnerability exists in the Distributed Transaction component of Bloomberg Comdb2 8.1 when processing a number ofEPSS 0.6%CVE-2025-59836MEDIUMOmni is Vulnerable to DoS via Empty Create/Update Resource RequestsEPSS 0.6%CVE-2025-58472LOWQsync CentralEPSS 0.6%CVE-2024-0209HIGHNULL Pointer Dereference in WiresharkEPSS 0.6%CVE-2024-46922HIGHAn issue was discovered in Samsung Mobile Processor Exynos 1480 and 2400. The absence of a null check leads to a Denial of Service at amdgpuEPSS 0.6%CVE-2025-65411HIGHA NULL pointer dereference in the src/path.c component of GNU Unrtf v0.21.10 allows attackers to cause a Denial of Service (DoS) via injectiEPSS 0.6%CVE-2024-50145HIGHocteon_ep: Add SKB allocation failures handling in __octep_oq_process_rx()EPSS 0.6%