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-2025-47134HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-47103HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-43591HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-8086MEDIUMOSGeo gdal SWapi.c SWnentries heap-based overflowEPSS 0.3%CVE-2023-37246HIGHA vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0008), Tecnomatix Plant Simulation V2302 (AllEPSS 0.3%CVE-2026-20408HIGHIn wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of EPSS 0.3%CVE-2026-70578HIGHWindows Credential Guard Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-68884HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-70568HIGHWindows Defender Firewall Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-69394HIGHWindows Audio Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-69564HIGHWindows Online Certificate Status Protocol (OCSP) Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-50472HIGHWindows LUA File Virtualization Filter Driver Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-41108HIGHWindows DNS Client Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-62753HIGHWindows HTTP.sys Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-69621HIGHRole: Windows Fax Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2025-61816HIGHInCopy | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-55005MEDIUMImageMagick: heap-buffer overflow in log colorspace handlingEPSS 0.3%CVE-2026-50372HIGHWindows Redirected Drive Buffering System Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-45653HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2024-22100HIGHMicroDicom DICOM Heap-based Buffer OverflowEPSS 0.3%