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-2026-54132MEDIUMWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-45252MEDIUMHeap overflow in FUSE_LISTXATTREPSS 0.4%CVE-2025-50155HIGHWindows Push Notifications Apps Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2024-6135HIGHBT:Classic: Multiple missing buf length checksEPSS 0.4%CVE-2024-3024MEDIUMappneta tcpreplay get.c get_layer4_v6 heap-based overflowEPSS 0.4%CVE-2023-25882HIGHZDI-CAN-19385: Adobe Dimension OBJ File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-25883HIGHZDI-CAN-19386: Adobe Dimension FBX File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-14664HIGHPostgreSQL regexp heap buffer overflow executes arbitrary codeEPSS 0.4%CVE-2023-23381HIGHVisual Studio Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-14670HIGHPostgreSQL plperl tied object heap buffer overflow executes arbitrary codeEPSS 0.4%CVE-2026-14676HIGHPostgreSQL pg_stat_statements heap buffer overflow executes arbitrary codeEPSS 0.4%CVE-2024-11518HIGHIrfanView RLE File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-35337HIGHWin32k Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2024-11516HIGHIrfanView JPM File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-45872MEDIUMBandisoft BandiView 7.05 is vulnerable to Buffer Overflow via sub_0x410d1d. The vulnerability occurs due to insufficient validation of PSD fEPSS 0.4%CVE-2024-11514HIGHIrfanView ECW File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2021-31424HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.5-47309. An attacker muEPSS 0.4%CVE-2022-3160HIGH The APDFL.dll contains an out-of-bounds write past the fixed-length heap-based buffer while parsing specially crafted PDF files. This coulEPSS 0.4%CVE-2024-11513HIGHIrfanView ECW File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-24246MEDIUMHeap Buffer Overflow vulnerability in qpdf 11.9.0 allows attackers to crash the application via the std::__shared_count() function at /bits/EPSS 0.4%