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-2024-20785HIGHAdobe Indesign 2024 TIFF File Parsing Memory Corruption Remote Code Execution vulnerabilityEPSS 0.4%CVE-2024-41850HIGHAdobe Indesign 2024 TIF File Parsing Heap Memory CorruptionEPSS 0.4%CVE-2026-34119HIGHHeap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WSEPSS 0.4%CVE-2026-34120HIGHHeap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WSEPSS 0.4%CVE-2026-21682HIGHiccDEV has heap-buffer-overflow in CIccXmlArrayType::ParseText()EPSS 0.4%CVE-2026-49790HIGHWindows Universal Disk Format File System Driver (UDFS) Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-50482HIGHWindows NTFS Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-58640HIGHWindows NTFS Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-0760HIGHHeap-based Buffer Overflow in gpac/gpacEPSS 0.4%CVE-2025-48805HIGHMicrosoft MPEG-2 Video Extension Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-4463HIGHHeap buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption viaEPSS 0.4%CVE-2026-92842MEDIUMOOB read / info leak in convert.* stream filters when line-break-chars contains NULEPSS 0.4%CVE-2026-4442HIGHHeap buffer overflow in CSS in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a EPSS 0.4%CVE-2018-7519—In Omron CX-Supervisor Versions 3.30 and prior, parsing malformed project files may cause a heap-based buffer overflow.EPSS 0.4%CVE-2026-4448HIGHHeap buffer overflow in ANGLE in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via EPSS 0.4%CVE-2026-3544HIGHHeap buffer overflow in WebCodecs in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to perform an out of bounds memory writEPSS 0.4%CVE-2024-11576HIGHLuxion KeyShot 3DS File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-43912MEDIUMDell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2025 releasEPSS 0.4%CVE-2025-2309MEDIUMHDF5 Type Conversion Logic H5T__bit_copy heap-based overflowEPSS 0.4%CVE-2022-44910HIGHBinbloom 2.0 was discovered to contain a heap buffer overflow via the read_pointer function at /binbloom-master/src/helpers.c.EPSS 0.4%