Weaknesses of type CWE-787

5,846 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-2022-23574HIGHOut of bounds read and write in TensorflowEPSS 0.8%CVE-2026-42944HIGHHeap overflow with multiple NSID, COOKIE, PADDING EDNS optionsEPSS 0.8%CVE-2026-114550HIGHlibwebsockets MQTT Protocol PUBACK Packet Handling Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.8%CVE-2023-32886HIGHIn Modem IMS SMS UA, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service withEPSS 0.8%CVE-2023-1801—The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.EPSS 0.8%CVE-2026-86510CRITICALD-Link DIR-822A L2TP Control Message tunnel_set_params out-of-bounds writeEPSS 0.8%CVE-2026-82680HIGHD-Link DSM-G600 Multipart load_file.cgi out-of-bounds writeEPSS 0.8%CVE-2021-44443—A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected prEPSS 0.8%CVE-2021-44446—A vulnerability has been identified in JT Utilities (All versions < V13.0.3.0), JTTK (All versions < V11.0.3.0). JTTK library in affected prEPSS 0.8%CVE-2021-44441—A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected prEPSS 0.8%CVE-2021-44430—A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected prEPSS 0.8%CVE-2021-44434—A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected prEPSS 0.8%CVE-2021-42024—A vulnerability has been identified in Simcenter STAR-CCM+ Viewer (All versions < 2021.3.1). The starview+.exe application lacks proper valiEPSS 0.8%CVE-2021-44438—A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected prEPSS 0.8%CVE-2021-44437—A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected prEPSS 0.8%CVE-2021-44449—A vulnerability has been identified in JT Utilities (All versions < V12.8.1.1), JTTK (All versions < V10.8.1.1). JTTK library in affected prEPSS 0.8%CVE-2023-27239CRITICALTenda AX3 V16.03.12.11 was discovered to contain a stack overflow via the shareSpeed parameter at /goform/WifiGuestSet.EPSS 0.8%CVE-2022-1403HIGHDelta Electronics ASDA-Soft Out-of-bounds WriteEPSS 0.8%CVE-2018-25221CRITICALEChat Server 3.1 Buffer Overflow via chat.ghp username ParameterEPSS 0.8%CVE-2023-29584HIGHmp4v2 v2.0.0 was discovered to contain a heap buffer overflow via the MP4GetVideoProfileLevel function at /src/mp4.cpp.EPSS 0.8%