Falhas do tipo CWE-122

3.188 resultados

Estouro de heap

Ocorre quando código escreve mais dados do que o espaço alocado em uma região de memória dinâmica (heap), sobrescrevendo dados adjacentes. Um atacante pode explorar isso para corromper estruturas de dados críticas, contornar proteções de segurança ou executar código arbitrário.

Exemplo

Um servidor web aloca 256 bytes para armazenar um nome de usuário, mas copia 512 bytes de uma requisição sem validação. Os 256 bytes extras sobrescrevem ponteiros ou metadados do heap, permitindo execução de código ou negação de serviço.

Como mitigar

Use funções seguras que respeitam limites (strcpy_s, memcpy com tamanho verificado em runtime). Validar e limitar o tamanho de entrada antes de copiar. Ativar proteções como ASLR, stack canaries e ferramentas de sanitização (AddressSanitizer) em desenvolvimento.

CVE-2022-41794CRITICALA heap based buffer overflow vulnerability exists in the PSD thumbnail resource parsing code of OpenImageIO 2.3.19.0. A specially-crafted PSEPSS 1.9%CVE-2024-35271HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-21398HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-37331HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-21414HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-35272HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-37332HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-37318HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2022-43597HIGHMultiple memory corruption vulnerabilities exist in the IFFOutput alignment padding functionality of OpenImageIO Project OpenImageIO v2.4.4.EPSS 1.8%CVE-2026-33837HIGHWindows TCP/IP Local Elevation of Privilege VulnerabilityEPSS 1.8%CVE-2025-21407HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.8%CVE-2025-21410HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.8%CVE-2021-4136HIGHHeap-based Buffer Overflow in vim/vimEPSS 1.8%CVE-2025-21190HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.8%CVE-2025-21200HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.8%CVE-2025-21208HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-38116HIGHWindows IP Routing Management Snapin Remote Code Execution VulnerabilityEPSS 1.8%CVE-2018-3857HIGHAn exploitable heap overflow exists in the TIFF parsing functionality of Canvas Draw version 4.0.0. A specially crafted TIFF image processedEPSS 1.8%CVE-2024-43611HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.8%CVE-2025-21172HIGH.NET and Visual Studio Remote Code Execution VulnerabilityEPSS 1.8%