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-2026-81992HIGHAcrobat Reader | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-75750HIGHSubstance3D - Painter | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-48428HIGHSubstance3D - Designer | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-34701HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-34687HIGHIllustrator | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-27312HIGHBridge | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-34707HIGHInCopy | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2021-21554MEDIUMDell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and, Dell Precision 7920 Rack Workstation BIOS contain a stack-based EPSS 0.3%CVE-2025-30317HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2024-42648MEDIUMNanoMQ v0.22.10 was discovered to contain a heap overflow which allows attackers to cause a Denial of Service (DoS) via a crafted CONNECT meEPSS 0.3%CVE-2026-83988HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-61355HIGHWindows Sensor Data Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-83955HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-73026HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-69592HIGHWindows Universal Disk Format File System Driver (UDFS) Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-61932HIGHWindows DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-62710HIGHWindows Device Association Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-70564HIGHWindows Print Spooler Components Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-83976HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-65774HIGHWindows Installer Elevation of Privilege VulnerabilityEPSS 0.3%