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-2024-46632MEDIUMAssimp v5.4.3 is vulnerable to Buffer Overflow via the MD5Importer::LoadMD5MeshFile function.EPSS 0.5%CVE-2026-6210HIGHType confusion and heap-buffer-overflow in Qt SVG marker handling causing application crashEPSS 0.5%CVE-2026-50678MEDIUMMicrosoft Excel Information Disclosure VulnerabilityEPSS 0.5%CVE-2026-19313CRITICALFireware OS Pre-Authentication Heap Buffer Overflow in iked Allows Remote Code ExecutionEPSS 0.5%CVE-2024-2011HIGHA heap-based buffer overflow vulnerability exists in the FOXMAN-UN/UNEM that if exploited will generally lead to a denial of service but canEPSS 0.5%CVE-2019-25327HIGHPrime95 Version 29.8 build 6 - Buffer Overflow (SEH)EPSS 0.5%CVE-2026-55193HIGHFreeRDP: Heap-buffer-overflow write in TS Gateway RPC fragment receive due to uncapped bind_ack max_xmit_fragEPSS 0.5%CVE-2026-12805MEDIUMOFFIS DCMTK ofxml.cc parseFile heap-based overflowEPSS 0.5%CVE-2026-69548MEDIUMWindows RNDIS Information Disclosure VulnerabilityEPSS 0.5%CVE-2025-62404HIGHHeap-based Buffer Overflow Vulnerability in TP-Link Archer AX53EPSS 0.5%CVE-2025-62405HIGHHeap-based Buffer Overflow Vulnerability in TP-Link Archer AX53EPSS 0.5%CVE-2025-49691HIGHWindows Miracast Wireless Display Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-61983HIGHHeap-based Buffer Overflow Vulnerability in TP-Link Archer AX53EPSS 0.5%CVE-2026-50655HIGHMicrosoft Windows Media Foundation Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-50386HIGHWindows NTFS Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-55056HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-54984HIGHWindows Imaging Component Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-55129HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-55039HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-64906HIGHMicrosoft Access Remote Code Execution VulnerabilityEPSS 0.5%