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-2026-72985MEDIUMVolume Shadow Copy Elevation of Privilege VulnerabilityEPSS 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-2025-50155HIGHWindows Push Notifications Apps Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2023-25883HIGHZDI-CAN-19386: Adobe Dimension FBX File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-45252MEDIUMHeap overflow in FUSE_LISTXATTREPSS 0.4%CVE-2024-6135HIGHBT:Classic: Multiple missing buf length checksEPSS 0.4%CVE-2024-11513HIGHIrfanView ECW File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 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-2026-14676HIGHPostgreSQL pg_stat_statements heap buffer overflow executes arbitrary codeEPSS 0.4%CVE-2024-11514HIGHIrfanView ECW 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-2024-11516HIGHIrfanView JPM File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-14670HIGHPostgreSQL plperl tied object heap buffer overflow executes arbitrary codeEPSS 0.4%CVE-2023-23381HIGHVisual Studio Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-35337HIGHWin32k Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-14664HIGHPostgreSQL regexp 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-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%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%