Weaknesses of type CWE-787

5,155 results

Escrita fora dos limites da memória

Ocorre quando o código escreve dados em um endereço de memória fora do intervalo alocado para uma estrutura (array, buffer, objeto). O programa não valida o tamanho ou índice antes de escrever, permitindo sobrescrever memória adjacente — causando corrupção de dados, queda da aplicação ou execução arbitrária de código.

Example

Um formulário web que copia o valor de um campo do usuário para um buffer de 64 bytes sem verificar o comprimento: se o atacante enviar 200 caracteres, a escrita invade a memória vizinha e pode sobrescrever um ponteiro de função ou variável crítica.

How to mitigate

Sempre validar tamanhos de entrada antes de copiar (usar `strncpy` em vez de `strcpy`, ou bibliotecas seguras como `bounds-checking`); usar linguagens com verificação automática de limites (Java, Rust); aplicar testes de fuzzing e análise estática de código para detectar escritas desprotegidas.

CVE-2024-22268HIGHVMware Workstation and Fusion contain a heap buffer-overflow vulnerability in the Shader functionality. A malicious actor with non-administrEPSS 0.5%CVE-2025-29365CRITICALspimsimulator spim v9.1.24 and before is vulnerable to Buffer Overflow in READ_STRING_SYSCALL.EPSS 0.5%CVE-2026-16692MEDIUMIBM i is Affected By Multiple Vulnerabilities in Simple Mail Transfer ProtocolEPSS 0.5%CVE-2026-20464MEDIUMIn hevc decoder, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege if a EPSS 0.5%CVE-2026-44254MEDIUMWazuh: Stack Out-of-Bounds Write in remoted Decompression PathEPSS 0.5%CVE-2026-58049HIGHFFmpeg - Out-of-Bounds Write in RASC Decoder decode_dlta()EPSS 0.5%CVE-2025-32405HIGHAn Out-of-bounds Write in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to induce a crash in IO devices that use the library by EPSS 0.5%CVE-2026-64835HIGHFFmpeg 4.4 - 8.1.2 Out-of-Bounds Memory Access in ADX Audio DecoderEPSS 0.5%CVE-2023-20524HIGHAn attacker with a compromised ASP could possibly send malformed commands to an ASP on another CPU, resulting in an out of bounds write, potEPSS 0.5%CVE-2026-53413HIGHZoom Clients - Buffer Over-writeEPSS 0.5%CVE-2022-1785HIGHOut-of-bounds Write in vim/vimEPSS 0.5%CVE-2021-46763HIGHInsufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer poteEPSS 0.5%CVE-2026-12292HIGHIncorrect boundary conditions in the Web Audio componentEPSS 0.5%CVE-2021-47786MEDIUMRedragon Gaming Mouse - 'REDRAGON_MOUSE.sys' Denial of Service (PoC)EPSS 0.5%CVE-2024-38638LOWQTS, QuTS heroEPSS 0.5%CVE-2024-53697LOWQTS, QuTS heroEPSS 0.5%CVE-2023-38118HIGHFoxit PDF Reader AcroForm Doc Object Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-49475HIGHFreeSWITCH: Out-of-bounds memory access in core STUN attribute parsingEPSS 0.5%CVE-2026-73194CRITICALDBI versions before 1.652 for Perl allow a heap out-of-bounds write via an unvalidated numeric placeholder that sets the binder counter in preparseEPSS 0.5%CVE-2024-53699LOWQTS, QuTS heroEPSS 0.5%