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-2023-40031HIGHNotepad++ vulnerable to heap buffer write overflow in Utf8_16_Read::convertEPSS 0.5%CVE-2025-53741HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2023-0433HIGHHeap-based Buffer Overflow in vim/vimEPSS 0.5%CVE-2026-34118HIGHHeap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C100, C101 & C520WSEPSS 0.5%CVE-2026-20876MEDIUMWindows Virtualization-Based Security (VBS) Enclave Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-45542HIGHESF-IDF: Heap buffer overflow in protocomm Security2 over BluetoothEPSS 0.5%CVE-2024-5835MEDIUMHeap buffer overflow in Tab Groups in Google Chrome prior to 126.0.6478.54 allowed a remote attacker who convinced a user to engage in speciEPSS 0.5%CVE-2026-33164HIGHNULL Pointer Dereference in libde265EPSS 0.5%CVE-2024-23127HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.5%CVE-2022-2601HIGHA buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glEPSS 0.5%CVE-2022-3491MEDIUMHeap-based Buffer Overflow in vim/vimEPSS 0.5%CVE-2022-38415HIGHAdobe InDesign PCX File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2022-35677HIGHAdobe FrameMaker SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2022-38414HIGHAdobe InDesign SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2024-5228HIGHTP-Link Omada ER605 Comexe DDNS Response Handling Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2022-38433HIGHAdobe Photoshop SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2023-1655HIGHHeap-based Buffer Overflow in gpac/gpacEPSS 0.5%CVE-2022-38401HIGHAdobe InCopy PCX File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2022-38413HIGHAdobe InDesign SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-62799HIGHFastDDS's heap buffer overflow in RTPS DATA_FRAG enables unauthenticated DoS (potential RCE)EPSS 0.5%