Fallos del tipo CWE-908

265 resultados

Uso de recurso não inicializado

O código utiliza uma variável, buffer, ponteiro ou outro recurso sem atribuir um valor inicial válido. Isso causa comportamento imprevisível: o programa lê lixo de memória ou executa operações com dados aleatórios, podendo levar a falhas, vazamento de informação ou execução de código arbitrário.

Ejemplo

Um desenvolvedor declara um array local sem zerá-lo e o passa diretamente para uma função criptográfica; a função processa dados lixo da stack anterior, compromentendo a segurança da operação criptográfica. Ou um ponteiro é usado antes de ser alocado, causando acesso a endereço de memória inválido.

Cómo mitigar

Inicialize sempre variáveis no ponto de declaração (em C/C++: use memset, calloc ou atribua valores válidos; em linguagens gerenciadas, confie no runtime). Use analisadores estáticos (como Clang Static Analyzer ou Coverity) para detectar leitura sem inicialização; implemente code review obrigatório para declarações de recursos.

CVE-2023-24941CRITICALWindows Network File System Remote Code Execution VulnerabilityEPSS 94.7%CVE-2008-0081CRITICALUnspecified vulnerability in Microsoft Excel 2000 SP3 through 2003 SP2, Viewer 2003, and Office 2004 for Mac allows user-assisted remote attEPSS 57.9%CVE-2012-1891CRITICALHeap-based buffer overflow in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 and Windows Data Access Components (WDAC) 6.0 allows rEPSS 29.4%CVE-2009-1529HIGHMicrosoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 dEPSS 28.7%CVE-2024-26209MEDIUMMicrosoft Local Security Authority Subsystem Service Information Disclosure VulnerabilityEPSS 14.8%CVE-2025-50165CRITICALWindows Graphics Component Remote Code Execution VulnerabilityEPSS 9.5%CVE-2024-12085HIGHRsync: info leak via uninitialized stack contentsEPSS 8.7%CVE-2023-36713MEDIUMWindows Common Log File System Driver Information Disclosure VulnerabilityEPSS 8.2%CVE-2025-33070HIGHWindows Netlogon Elevation of Privilege VulnerabilityEPSS 6.8%CVE-2019-13117MEDIUMIn numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumberEPSS 6.5%CVE-2024-43502HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 6.1%CVE-2019-0006CRITICALJunos OS: EX, QFX and MX series: Packet Forwarding Engine manager (FXPC) process crashes due to a crafted HTTP packet in a Virtual Chassis configurationEPSS 5.3%CVE-2019-18197HIGHIn xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area haEPSS 4.5%CVE-2024-38257HIGHMicrosoft AllJoyn API Information Disclosure VulnerabilityEPSS 4.5%CVE-2026-40364HIGHMicrosoft Word Remote Code Execution VulnerabilityEPSS 4.4%CVE-2023-22897MEDIUMAn issue was discovered in SecurePoint UTM before 12.2.5.1. The firewall's endpoint at /spcgi.cgi allows information disclosure of memory coEPSS 4.1%CVE-2025-49718HIGHMicrosoft SQL Server Information Disclosure VulnerabilityEPSS 2.8%CVE-2021-43848HIGHUnititialized memory access in h2oEPSS 2.7%CVE-2025-59194HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 2.5%CVE-2018-25014—A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol().EPSS 2.2%