Weaknesses of type CWE-787

5,179 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-2023-37348HIGHKofax Power PDF U3D File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-38083HIGHKofax Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-34290HIGHAshlar-Vellum Cobalt Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-37350HIGHKofax Power PDF TIF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-11532HIGHIrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-38081HIGHKofax Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-37345HIGHKofax Power PDF J2K File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-37349HIGHKofax Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-38079HIGHKofax Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-34291HIGHAshlar-Vellum Cobalt Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-11533HIGHIrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-34262HIGHFatek Automation FvDesigner FPJ File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-40482HIGHMaxon Cinema 4D SKP File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-40483HIGHMaxon Cinema 4D SKP File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-7426MEDIUMOut-of-Bounds Write via Unsanitized Prefix Length in Router Advertisement Processing in FreeRTOS-Plus-TCPEPSS 0.4%CVE-2026-17006HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%CVE-2023-6228LOWLibtiff: heap-based buffer overflow in cpstriptotile() in tools/tiffcp.cEPSS 0.4%CVE-2026-16225MEDIUMdavenardella snap7 s7_peer.cpp NegotiatePDULength out-of-bounds writeEPSS 0.4%CVE-2023-42127HIGHKofax Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-41445MEDIUMLibrary MDF (mdflib) v2.1 is vulnerable to a heap-based buffer overread via a crafted mdf4 file is parsed using the ReadData functionEPSS 0.4%