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-2026-3560HIGHPhilips Hue Bridge HomeKit hk_hap_pair_storage_put Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2024-20745HIGHZDI-CAN-22671: Adobe Premiere Pro AVI File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2024-21596MEDIUMJunos OS and Junos OS Evolved: A specific BGP UPDATE message will cause a crash in the backup Routing Engine in NSR-enabled devicesEPSS 0.5%CVE-2026-32945HIGHPJSIP is vulnerable to Heap-based Buffer Overflow through DNS parserEPSS 0.5%CVE-2020-15198MEDIUMHeap buffer overflow in TensorflowEPSS 0.5%CVE-2025-0870MEDIUMAxiomatic Bento4 Ap4DataBuffer.h GetData heap-based overflowEPSS 0.5%CVE-2024-2212HIGHInteger wraparounds, under-allocations, and heap buffer overflows in Eclipse ThreadX xQueueCreate() and xQueueCreateSet()EPSS 0.5%CVE-2023-4692HIGHGrub2: out-of-bounds write at fs/ntfs.c may lead to unsigned code executionEPSS 0.5%CVE-2025-2754MEDIUMOpen Asset Import Library Assimp AC3D File ACLoader.cpp ConvertObjectSection heap-based overflowEPSS 0.5%CVE-2025-32717HIGHMicrosoft Word Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-50176HIGHDirectX Graphics Kernel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2023-22660HIGHA heap-based buffer overflow vulnerability exists in the way Ichitaro version 2022 1.0.1.57600 processes certain LayoutBox stream record typEPSS 0.5%CVE-2025-10921HIGHGIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-10934HIGHGIMP XWD File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-42975HIGHWindows Bluetooth Port Driver Remote Code ExecutionEPSS 0.5%CVE-2024-50571MEDIUMA heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.2, FortiAnalyzer 7.4.0 through 7.4.5, FortiAnalyzer 7EPSS 0.5%CVE-2024-56406HIGHPerl is vulnerable to a heap buffer overflow when transliterating non-ASCII bytesEPSS 0.5%CVE-2022-42403HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.5%CVE-2026-34329HIGHMicrosoft Message Queuing (MSMQ) Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-62816HIGHWindows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityEPSS 0.5%