Weaknesses of type CWE-122

3,195 results

Transbordamento de heap (heap overflow)

Ocorre quando um programa escreve dados além dos limites de um buffer alocado dinamicamente na memória heap, sobrescrevendo dados adjacentes ou metadados do alocador. Isso permite que um atacante corrompa estruturas críticas, execute código arbitrário ou cause travamento da aplicação.

Example

Uma função recebe um tamanho de entrada sem validar e copia para um buffer: `strcpy(heap_buffer, user_input)` sem verificar se user_input cabe. Se o usuário enviar 1000 bytes para um buffer de 256, o overflow sobrescreve estruturas próximas no heap e pode ser explorado para RCE.

How to mitigate

Use funções seguras de cópia (`strncpy`, `strlcpy`), valide e limite o tamanho da entrada antes de copiar, e considere usar linguagens com gerenciamento automático de memória ou ferramentas como AddressSanitizer durante testes para detectar overflows.

CVE-2026-58601HIGHVirtual Hard Disk (VHD) Miniport Driver Elevation of Privilege VulernabilityEPSS 0.3%CVE-2026-83969HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-40407HIGHWindows Common Log File System Driver Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-70347HIGHWindows Installer Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-50679HIGHWindows Search Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-69841HIGHWindows Encrypting File System (EFS) Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-62770HIGHWindows Shell Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-69535HIGHWindows Spaceport.sys Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-83973HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-73001HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-73011HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-50494HIGHWindows NTFS Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-83952HIGHWindows Resilient File System (ReFS) Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-62797HIGHWindows NTFS Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-62771HIGHWindows Cloud Files Mini Filter Driver Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-62741HIGHWindows HTTP.sys Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-42980HIGHNT OS Kernel Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-80075HIGHWindows Work Folders Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-73020HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-40404HIGHWindows Universal Disk Format File System Driver (UDFS) Elevation of Privilege VulnerabilityEPSS 0.3%