Weaknesses of type CWE-787

5,212 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-2026-21334HIGHSubstance3D - Designer | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2021-47765MEDIUMAbsoluteTelnet 11.24 - 'Username' Denial of Service (PoC)EPSS 0.2%CVE-2024-38489LOWDell iDRAC Service Module version 5.3.0.0 and prior contains Out of bound write Vulnerability. A privileged local attacker could execute arbEPSS 0.2%CVE-2024-27379MEDIUMAn issue was discovered in Samsung Mobile Processor Exynos 980, Exynos 850, Exynos 1280, Exynos 1380, and Exynos 1330. In the function slsi_EPSS 0.2%CVE-2021-47764MEDIUMAbsoluteTelnet 11.24 - 'Phone' Denial of Service (PoC)EPSS 0.2%CVE-2026-21335HIGHSubstance3D - Designer | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2026-21312HIGHAudition | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2026-21328HIGHAfter Effects | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2026-18821HIGHPower System Out-of-bounds WriteEPSS 0.2%CVE-2026-0661HIGHOut-of-Bounds Write in RGB File ParsingEPSS 0.2%CVE-2026-33491HIGHZen-C has Stack-Based Buffer Overflow in Identifier ManglingEPSS 0.2%CVE-2026-0537HIGHRGB File Parsing Memory CorruptionEPSS 0.2%CVE-2024-7993HIGHOut-of-Bounds Write Vulnerability in Autodesk RevitEPSS 0.2%CVE-2018-9373HIGHIn TdlsexRxFrameHandle of the MTK WLAN driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remEPSS 0.2%CVE-2023-21506MEDIUMOut-of-bounds Write vulnerability while processing BC_TUI_CMD_SEND_RESOURCE_DATA_ARRAY command in bc_tui trustlet from Samsung Blockchain KeEPSS 0.2%CVE-2026-0538HIGHGIF File Parsing Out-of-Bounds WriteEPSS 0.2%CVE-2025-49573HIGHSubstance3D - Modeler | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2025-49572HIGHSubstance3D - Modeler | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2025-7546MEDIUMGNU Binutils elf.c bfd_elf_set_group_contents out-of-bounds writeEPSS 0.2%CVE-2026-54692HIGHSAIL: XBM X10 decoder writes 2 bytes per literal into a 1-byte-per-literal buffer (heap out-of-bounds write)EPSS 0.2%