Falhas do tipo CWE-122

3.195 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-2021-21555MEDIUMDell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a heap-based buffer overflow vulnerabiliEPSS 0.3%CVE-2023-3428MEDIUMImagemagick: heap-buffer-overflow in coders/tiff.cEPSS 0.3%CVE-2024-26540HIGHA heap-based buffer overflow in Clmg before 3.3.3 can occur via a crafted file to cimg_library::CImg<unsigned char>::_load_analyze.EPSS 0.3%CVE-2026-47471HIGHNVIDIA TensorRT-LLM for any platform contains a vulnerability in tensor deserialization, where an attacker could cause a heap based buffer oEPSS 0.3%CVE-2026-97152HIGHNanomsg versions 0.5-beta through 1.x before 1.2.3 has a remotely exploitable buffer overflow in the WebSocket transport, due to an uncheckeEPSS 0.3%CVE-2024-56826MEDIUMOpenjpeg: heap buffer overflow in bin/common/color.cEPSS 0.3%CVE-2024-23796HIGHA vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0012), Tecnomatix Plant Simulation V2302 (AllEPSS 0.3%CVE-2026-42807HIGHA heap-based buffer overflow vulnerability in the PC bridge protocol decoder of BoschSensortec COINES_SDK (versions 2.10 through 2.12.2) allEPSS 0.3%CVE-2024-0911MEDIUMIndent: heap-based buffer overflow in set_buf_break()EPSS 0.3%CVE-2026-76887LOWHeap-based Buffer Overflow in WiresharkEPSS 0.3%CVE-2024-43168MEDIUMUnbound: heap-buffer-overflow in unboundEPSS 0.3%CVE-2021-22564MEDIUMOut of bounds Copy in Libjxl in large image groupsEPSS 0.3%CVE-2025-52868LOWQsync CentralEPSS 0.3%CVE-2025-61820HIGHIllustrator | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-10929HIGHHeap buffer overflow in ANGLE in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer EPSS 0.3%CVE-2026-10949HIGHHeap buffer overflow in Video in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to EPSS 0.3%CVE-2025-61832HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-61824HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-48071HIGHOpenEXR's Forged Unpacked Size can Lead to Heap-Based Buffer Overflow in Deep Scanline ParsingEPSS 0.3%CVE-2025-54209HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%