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-2026-17141CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-33901HIGHImageMagick has a Heap Buffer Overflow via MVG decoderEPSS 0.8%CVE-2026-16845CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-16862CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-16894CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-17152CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-17157CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-16864CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-17083CRITICALIBM i is Affected By Multiple Vulnerabilities in the Debug ServerEPSS 0.8%CVE-2026-16913CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-17122CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2026-54333CRITICALUEFI Firmware Parser: Stack out-of-bounds write in tiano decompressor MakeTableEPSS 0.8%CVE-2026-64770CRITICALAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 anEPSS 0.8%CVE-2026-70007HIGH.NET Framework Remote Code Execution VulnerabilityEPSS 0.8%CVE-2024-54543HIGHThe issue was addressed with improved memory handling. This issue is fixed in Safari 18.2, iOS 18.2 and iPadOS 18.2, iPadOS 17.7.6, macOS SeEPSS 0.8%CVE-2026-54334CRITICALUEFI Firmware Parser: Heap out-of-bounds write in tiano decompressor `ReadCLen`EPSS 0.8%CVE-2026-64769CRITICALAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 anEPSS 0.8%CVE-2024-24188CRITICALJsish v3.5.0 was discovered to contain a heap-buffer-overflow in ./src/jsiUtils.c.EPSS 0.8%CVE-2022-45689HIGHhutool-json v5.8.10 was discovered to contain an out of memory error.EPSS 0.8%CVE-2022-1042HIGHOut-of-bound write vulnerability in the Bluetooth mesh core stack can be triggered during provisioningEPSS 0.8%