Weaknesses of type CWE-787

5,172 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-2023-37419HIGHMultiple out-of-bounds write vulnerabilities exist in the VCD parse_valuechange portdump functionality of GTKWave 3.3.115. A specially craftEPSS 0.4%CVE-2024-34115HIGHZDI-CAN-24054: Adobe Substance 3D Stager SKP File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2021-3638—An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while haEPSS 0.4%CVE-2025-23099CRITICALAn issue was discovered in Samsung Mobile Processor Exynos 1480 and 2400. The lack of a length check leads to out-of-bounds writes.EPSS 0.4%CVE-2024-9247HIGHFoxit PDF Reader Annotation Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-0800MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in tools/tiffcrop.c:3502, allowing attackers to cause a denial-of-service via a craftedEPSS 0.4%CVE-2023-0803MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in tools/tiffcrop.c:3516, allowing attackers to cause a denial-of-service via a craftedEPSS 0.4%CVE-2023-0802MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in tools/tiffcrop.c:3724, allowing attackers to cause a denial-of-service via a craftedEPSS 0.4%CVE-2022-42421HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.4%CVE-2023-0801MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in libtiff/tif_unix.c:368, invoked by tools/tiffcrop.c:2903 and tools/tiffcrop.c:6778, EPSS 0.4%CVE-2023-0804MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in tools/tiffcrop.c:3609, allowing attackers to cause a denial-of-service via a craftedEPSS 0.4%CVE-2026-12553HIGHHP Web Jetadmin (WJA) - Potential Arbitrary File Read/WriteEPSS 0.4%CVE-2025-23097CRITICALAn issue was discovered in Samsung Mobile Processor Exynos 1380. The lack of a length check leads to out-of-bounds writes.EPSS 0.4%CVE-2026-54900MEDIUMOj: Negative-Size memcpy in Oj::Parser create_id Attribute HandlingEPSS 0.4%CVE-2022-41842MEDIUMAn issue was discovered in Xpdf 4.04. There is a crash in gfseek(_IO_FILE*, long, int) in goo/gfile.cc.EPSS 0.4%CVE-2026-4746CRITICALHeap Buffer Over-Write Vulenrabilty in timeplus-io/protonEPSS 0.4%CVE-2023-33693HIGHA buffer overflow in EasyPlayerPro-Win v3.2.19.0106 to v3.6.19.0823 allows attackers to cause a Denial of Service (DoS) via a crafted XML fiEPSS 0.4%CVE-2025-42940HIGHMemory Corruption vulnerability in SAP CommonCryptoLibEPSS 0.4%CVE-2024-23147HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.4%CVE-2025-1125HIGHGrub2: fs/hfs: integer overflow may lead to heap based out-of-bounds writeEPSS 0.4%