Weaknesses of type CWE-787

5,210 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-2023-0199MEDIUMNVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer handler, where an out-of-bounds write can EPSS 0.2%CVE-2026-25502HIGHiccDEV is vulnerable to stack-buffer-overflow in icFixXml()EPSS 0.2%CVE-2026-74225HIGHU-Boot before 2026.10-rc5 Out-of-Bounds Write via DHCPv6EPSS 0.2%CVE-2025-41413HIGHFuji Electric Smart Editor Out-of-bounds WriteEPSS 0.2%CVE-2026-39853HIGHosslsigncode has a Stack Buffer Overflow via Unbounded Digest Copy During Signature VerificationEPSS 0.2%CVE-2023-0623HIGHCVE-2023-0623EPSS 0.2%CVE-2023-25009HIGHA malicious actor may convince a user to open a malicious USD file that may trigger an out-of-bounds write vulnerability which could result EPSS 0.2%CVE-2025-6272MEDIUMwasm3 m3_compile.c MarkSlotAllocated out-of-bounds writeEPSS 0.2%CVE-2023-0622HIGHCVE-2023-0622EPSS 0.2%CVE-2023-5068HIGHDelta Electronics DIAScreen Out-of-bounds WriteEPSS 0.2%CVE-2026-20886MEDIUMOut-of-bounds write for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow a denial of service.EPSS 0.2%CVE-2026-101202MEDIUMFastStone Image Viewer TGA Image out-of-bounds writeEPSS 0.2%CVE-2026-101203MEDIUMFastStone Image Viewer 1bpp RLE Decoder out-of-bounds writeEPSS 0.2%CVE-2026-0161HIGHIn numberOfReportBlocks of RtpSession.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to remote escEPSS 0.2%CVE-2026-0151HIGHIn IntfGraphCreate of intfgraph.c, there is a possible out of bounds write due to an integer overflow. This could lead to remote code executEPSS 0.2%CVE-2019-25644MEDIUMWinMPG Video Convert 9.3.5 Buffer Overflow Local Denial of ServiceEPSS 0.2%CVE-2026-0164HIGHIn Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additionalEPSS 0.2%CVE-2025-30441MEDIUMThis issue was addressed through improved state management. This issue is fixed in Xcode 16.3. An app may be able to overwrite arbitrary filEPSS 0.2%CVE-2024-13044HIGHAshlar-Vellum Cobalt AR File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.2%CVE-2026-20434HIGHIn Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE EPSS 0.2%