Falhas do tipo CWE-122

3.202 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-2025-1273HIGHPDF File Parsing Heap-Based Overflow VulnerabilityEPSS 0.2%CVE-2026-77652HIGHDia: dia: heap buffer overflow in wpg colormap parser via out-of-bounds palette indexEPSS 0.2%CVE-2026-47749HIGHstable-diffusion.cpp: Heap buffer overflow in SHORT_BINUNICODE parsing for PyTorch checkpoint filesEPSS 0.2%CVE-2024-54093HIGHA vulnerability has been identified in Solid Edge SE2024 (All versions < V224.0 Update 5). The affected application is vulnerable to heap-baEPSS 0.2%CVE-2025-61553HIGHAn out-of-bounds write in VirtIO network device emulation in BitVisor from commit 108df6 (2020-05-20) to commit 480907 (2025-07-06) allows lEPSS 0.2%CVE-2024-54094HIGHA vulnerability has been identified in Solid Edge SE2024 (All versions < V224.0 Update 5). The affected application is vulnerable to heap-baEPSS 0.2%CVE-2025-10504MEDIUMHeap Memory Corruption VulnerabilityEPSS 0.2%CVE-2023-42848HIGHThe issue was addressed with improved bounds checks. This issue is fixed in watchOS 10.1, macOS Sonoma 14.1, tvOS 17.1, iOS 16.7.2 and iPadOEPSS 0.2%CVE-2025-68469LOWImageMagick vulnerable to heap-buffer-overflowEPSS 0.2%CVE-2026-8261MEDIUMSquirrel sqobject.cpp Load heap-based overflowEPSS 0.2%CVE-2026-24272HIGHNVIDIA TensorRT contains a vulnerability where an attacker might cause an overflow to a heap-based buffer. A successful exploit of this vulnEPSS 0.2%CVE-2022-34400HIGH Dell BIOS contains a heap buffer overflow vulnerability. A local attacker with admin privileges could potentially exploit this vulnerabilitEPSS 0.2%CVE-2025-24477MEDIUMA heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.1EPSS 0.2%CVE-2024-8594HIGHAutodesk AutoCAD MODEL File Parsing Heap-based Buffer Overflow Code Execution VulnerabilityEPSS 0.2%CVE-2025-64524LOWCUPS rastertopclx Filter Vulnerable to Heap Buffer Overflow Leading to Potential Arbitrary Code ExecutionEPSS 0.2%CVE-2025-63701MEDIUMA heap corruption vulnerability exists in the Advantech TP-3250 printer driver's DrvUI_x64_ADVANTECH.dll (v0.3.9200.20789) when DocumentPropEPSS 0.2%CVE-2026-48065MEDIUMpam_usb: Unchecked integer multiplication before xmalloc() in conf.c allows heap-based buffer overflow on 32-bit targetsEPSS 0.2%CVE-2024-0156HIGHDell Digital Delivery, versions prior to 5.2.0.0, contain a Buffer Overflow Vulnerability. A local low privileged attacker could potentiallyEPSS 0.2%CVE-2023-49121HIGHA vulnerability has been identified in Solid Edge SE2023 (All versions < V223.0 Update 10). The affected application is vulnerable to heap-bEPSS 0.2%CVE-2023-40222HIGHAshlar-Vellum Cobalt, Xenon, Argon, Lithium Heap-based Buffer OverflowEPSS 0.2%