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-2025-0696MEDIUMA NULL Pointer Dereference vulnerability in Cesanta Frozen versions less than 1.7 allows an attacker to induce a crash of the component embeEPSS 0.4%CVE-2024-39132MEDIUMA NULL Pointer Dereference vulnerability in DumpTS v0.1.0-nightly allows attackers to cause a denial of service via the function VerifyCommaEPSS 0.4%CVE-2024-37820MEDIUMA nil pointer dereference in PingCAP TiDB v8.2.0-alpha-216-gfe5858b allows attackers to crash the application via expression.inferCollation.EPSS 0.4%CVE-2026-42183LOWArgo Workflows: SSO RBAC Delegation Nil Pointer Dereference DoS (gatekeeper.go)EPSS 0.4%CVE-2026-26456HIGHA null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccdEPSS 0.4%CVE-2026-75618HIGHRTSP Null Pointer Dereference Denial-of-Service Vulnerability on TP-Link Tapo C100 and C101EPSS 0.4%CVE-2022-2476—A null pointer dereference bug was found in wavpack-5.4.0 The results from the ASAN log: AddressSanitizer:DEADLYSIGNAL =====================EPSS 0.4%CVE-2023-3012MEDIUMNULL Pointer Dereference in gpac/gpacEPSS 0.4%CVE-2026-101961HIGHJunos OS and Junos OS Evolved: A specific BGP packet causes an rpd crash when an ECMP qualifier is used in an import policyEPSS 0.4%CVE-2025-42902MEDIUMMemory Corruption vulnerability in SAP Netweaver AS ABAP and ABAP PlatformEPSS 0.4%CVE-2025-29901HIGHFile Station 5EPSS 0.4%CVE-2026-24409HIGHiccDEV has Undefined Behavior and Null Pointer Deference in CIccTagXmlFloatNum<>::ParseXml()EPSS 0.4%CVE-2026-24410HIGHiccDEV has Undefined Behavior and Null Pointer Deference in CIccProfileXml::ParseBasic()EPSS 0.4%CVE-2025-30267MEDIUMQTS, QuTS heroEPSS 0.4%CVE-2026-24411HIGHiccDEV has Undefined Behavior and Null Pointer Deference in CIccTagXmlSegmentedCurve::ToXml()EPSS 0.4%CVE-2025-30268MEDIUMQTS, QuTS heroEPSS 0.4%CVE-2025-30275MEDIUMQsync CentralEPSS 0.4%CVE-2026-4652HIGHRemote denial of service via null pointer dereferenceEPSS 0.4%CVE-2026-100890MEDIUMTrusted Domain Project OpenDMARC SPF Parser opendmarc_spf.c opendmarc_spf_ipv6_explode null pointer dereferenceEPSS 0.4%CVE-2025-22921MEDIUMFFmpeg git-master,N-113007-g8d24a28d06 was discovered to contain a segmentation violation via the component /libavcodec/jpeg2000dec.c.EPSS 0.4%