Weaknesses of type CWE-122

3,195 results

Transbordamento de heap (heap overflow)

Ocorre quando um programa escreve dados além dos limites de um buffer alocado dinamicamente na memória heap, sobrescrevendo dados adjacentes ou metadados do alocador. Isso permite que um atacante corrompa estruturas críticas, execute código arbitrário ou cause travamento da aplicação.

Example

Uma função recebe um tamanho de entrada sem validar e copia para um buffer: `strcpy(heap_buffer, user_input)` sem verificar se user_input cabe. Se o usuário enviar 1000 bytes para um buffer de 256, o overflow sobrescreve estruturas próximas no heap e pode ser explorado para RCE.

How to mitigate

Use funções seguras de cópia (`strncpy`, `strlcpy`), valide e limite o tamanho da entrada antes de copiar, e considere usar linguagens com gerenciamento automático de memória ou ferramentas como AddressSanitizer durante testes para detectar overflows.

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%