Fallos del tipo CWE-122

3195 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-2025-53131HIGHWindows Media Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-50163HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 0.9%CVE-2026-32135HIGHNanoMQ has Heap Buffer Overflow in URI Parameter ParsingEPSS 0.9%CVE-2025-50129HIGHA memory corruption vulnerability exists in the PCX Image Decoding functionality of the SAIL Image Decoding Library v0.9.8. When decoding thEPSS 0.9%CVE-2022-1061HIGHHeap Buffer Overflow in parseDragons in radareorg/radare2EPSS 0.9%CVE-2025-53085HIGHA memory corruption vulnerability exists in the PSD RLE Decoding functionality of the SAIL Image Decoding Library v0.9.8. When decompressingEPSS 0.9%CVE-2022-40661HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of NIKON NIS-Elements Viewer 1.2100.1483.0. UEPSS 0.9%CVE-2024-38065MEDIUMSecure Boot Security Feature Bypass VulnerabilityEPSS 0.9%CVE-2023-32138HIGHD-Link DAP-1360 webproc Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-53511CRITICALA heap-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch EPSS 0.9%CVE-2023-32047HIGHPaint 3D Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-21180HIGHWindows exFAT File System Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-53853CRITICALA heap-based buffer overflow vulnerability exists in the ISHNE parsing functionality of The Biosig Project libbiosig 3.9.0 and Master BranchEPSS 0.9%CVE-2023-21785HIGH3D Builder Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-21781HIGH3D Builder Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-21791HIGH3D Builder Remote Code Execution VulnerabilityEPSS 0.9%CVE-2026-63090HIGHProFTPD mod_sftp Heap Buffer Overflow via SFTP Packet ReassemblyEPSS 0.9%CVE-2023-21793HIGH3D Builder Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-21786HIGH3D Builder Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-21790HIGH3D Builder Remote Code Execution VulnerabilityEPSS 0.9%