Fallos del tipo CWE-122

3211 resultados

Estouro de heap

É quando o código escreve dados além dos limites de um buffer alocado no heap (memória dinâmica), sobrescrevendo dados de outras estruturas adjacentes. Esse estouro pode corromper metadados do heap, variáveis vizinhas ou objetos do programa, permitindo execução de código arbitrário ou negação de serviço.

Ejemplo

Um servidor web recebe uma string de tamanho arbitrário e a copia para um buffer de 256 bytes sem validar o comprimento (ex: strcpy em C). Se o atacante enviar 500 bytes, o restante escreve além da zona alocada, corrompendo estruturas próximas e potencialmente ganhando controle do fluxo.

Cómo mitigar

Use funções seguras (strncpy, strlcpy, snprintf em C) que respeitam limites de tamanho; valide e sanitize entrada do usuário antes de copiar; ative proteções do SO (ASLR, DEP/NX); use linguagens de memória segura quando possível; aplique verificações de limites em loops de cópia.

CVE-2026-47311HIGHHeap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: 590345cc6258EPSS 0.3%CVE-2025-30644HIGHJunos OS: EX2300, EX3400, EX4000 Series, QFX5k Series: Receipt of a specific DHCP packet causes FPC crash when DHCP Option 82 is enabledEPSS 0.3%CVE-2022-39136HIGHA vulnerability has been identified in JT2Go (All versions < V14.1.0.4), Teamcenter Visualization V13.2 (All versions < V13.2.0.12), TeamceEPSS 0.3%CVE-2025-11205HIGHHeap buffer overflow in WebGPU in Google Chrome prior to 141.0.7390.54 allowed a remote attacker who had compromised the renderer process toEPSS 0.3%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-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-2026-97152HIGHNanomsg 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-2024-0911MEDIUMIndent: heap-based buffer overflow in set_buf_break()EPSS 0.3%CVE-2026-76887LOWHeap-based Buffer Overflow in WiresharkEPSS 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-2024-43168MEDIUMUnbound: 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-2025-61824HIGHInDesign Desktop | 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-2025-61832HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%