Falhas do tipo CWE-122

3.189 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-2024-43598HIGHLightGBM Remote Code Execution VulnerabilityEPSS 1.4%CVE-2025-21252HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.4%CVE-2025-21305HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.4%CVE-2025-21306HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.4%CVE-2025-21302HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.4%CVE-2024-43564HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.4%CVE-2024-43607HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.4%CVE-2024-43608HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.4%CVE-2026-20868HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.4%CVE-2022-0080HIGHHeap-based Buffer Overflow in mruby/mrubyEPSS 1.4%CVE-2021-21795CRITICALA heap-based buffer overflow vulnerability exists in the PSD read_icc_icCurve_data functionality of Accusoft ImageGear 19.9. A specially craEPSS 1.4%CVE-2022-2207HIGHHeap-based Buffer Overflow in vim/vimEPSS 1.4%CVE-2023-24876HIGHMicrosoft PostScript and PCL6 Class Printer Driver Remote Code Execution VulnerabilityEPSS 1.4%CVE-2022-32137HIGHCODESYS Runtime System prone to heap based buffer overflowEPSS 1.4%CVE-2026-94127CRITICALBIG-IP APM OAuth vulnerabilityEPSS 1.4%KEVCVE-2022-27572HIGHHeap-based buffer overflow vulnerability in parser_ipma function of libsimba library prior to SMR Apr-2022 Release 1 allows code execution bEPSS 1.4%CVE-2022-27569HIGHHeap-based buffer overflow vulnerability in parser_infe function in libsimba library prior to SMR Apr-2022 Release 1 allows code execution bEPSS 1.4%CVE-2022-26098HIGHHeap-based buffer overflow vulnerability in sheifd_create function of libsimba library prior to SMR Apr-2022 Release 1 allows code executionEPSS 1.4%CVE-2022-27568HIGHHeap-based buffer overflow vulnerability in parser_iloc function in libsimba library prior to SMR Apr-2022 Release 1 allows code execution bEPSS 1.4%CVE-2022-27571HIGHHeap-based buffer overflow vulnerability in sheifd_get_info_image function in libsimba library prior to SMR Apr-2022 Release 1 allows code eEPSS 1.4%