Fallos del tipo CWE-122

3202 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-2023-25872HIGHAdobe Substance 3D Stager SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-26413HIGHZDI-CAN-20315: Adobe Substance 3D Designer USD File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-50343CRITICALAn issue was discovered in matio 1.5.28. A heap-based memory corruption can occur in Mat_VarCreateStruct() when the nfields value does not mEPSS 0.4%CVE-2025-49705HIGHMicrosoft PowerPoint Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-29069HIGHA heap buffer overflow vulnerability has been identified in the lcms2-2.16. The vulnerability exists in the UnrollChunkyBytes function in cmEPSS 0.4%CVE-2023-21594HIGHAdobe InCopy Font Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-59242HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-81851MEDIUMFireware OS Heap-Based Buffer Overflow in iked Allows Denial of ServiceEPSS 0.4%CVE-2023-42039HIGHKofax Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-58547MEDIUMWindows Universal Plug and Play (UPnP) Device Host Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2024-49545HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.4%CVE-2025-67433HIGHA heap buffer overflow in the processRequest function of Open TFTP Server MultiThreaded v1.7 allows attackers to cause a Denial of Service (EPSS 0.4%CVE-2026-38754MEDIUMA heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplyEPSS 0.4%CVE-2025-27195HIGHMedia Encoder | Heap-based Buffer Overflow (CWE-122)EPSS 0.4%CVE-2025-27198HIGHPhotoshop Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.4%CVE-2025-27199HIGHAnimate | Heap-based Buffer Overflow (CWE-122)EPSS 0.4%CVE-2026-35547HIGHHeap overflow in libnvEPSS 0.4%CVE-2023-38080HIGHKofax Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-13072CRITICALMongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory CorruptionEPSS 0.4%CVE-2024-24334HIGHA heap buffer overflow occurs in dfs_v2 dfs_file in RT-Thread through 5.0.2.EPSS 0.4%