Weaknesses of type CWE-787

5,176 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-2024-27327HIGHPDF-XChange Editor PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-1050HIGHSonos Era 300 Out-of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-27802HIGHAn out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOSEPSS 0.4%CVE-2022-35096MEDIUMSWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via draw_stroke at /gfxpoly/stroke.c.EPSS 0.4%CVE-2026-28918MEDIUMAn out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5EPSS 0.4%CVE-2026-84519MEDIUMAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOSEPSS 0.4%CVE-2023-3110CRITICALBuffer overflow in S0 Decryption on Unify GatewayEPSS 0.4%CVE-2026-16901HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%CVE-2026-28966MEDIUMAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOSEPSS 0.4%CVE-2026-10673HIGHOut-of-bounds write in ADIN2111/ADIN1110 OA SPI Ethernet RX frame reassemblyEPSS 0.4%CVE-2026-6784HIGHMemory safety bugs fixed in Firefox 150 and Thunderbird 150EPSS 0.4%CVE-2026-16903CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%CVE-2024-49748CRITICALIn gatts_process_primary_service_req of gatt_sr.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead tEPSS 0.4%CVE-2026-59186HIGHOpenEXR: Heap out-of-bounds write in TiledRgbaInputFile via integer overflow on 32-bit (ILP32) buildsEPSS 0.4%CVE-2023-50805HIGHA vulnerability was discovered in Samsung Mobile Processor, Wearable Processor, and Modems with versions Exynos 9820, Exynos 9825, Exynos 98EPSS 0.4%CVE-2022-48622HIGHIn GNOME GdkPixbuf (aka gdk-pixbuf) through 2.42.10, the ANI (Windows animated cursor) decoder encounters heap memory corruption (in ani_loaEPSS 0.4%CVE-2023-50807HIGHA vulnerability was discovered in Samsung Wearable Processor and Modems with versions Exynos 9110, Exynos Modem 5123, Exynos Modem 5300 thatEPSS 0.4%CVE-2025-47728HIGHFile Parsing Memory Corruption in CNCSoft-G2EPSS 0.4%CVE-2022-32911HIGHThe issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS BEPSS 0.4%CVE-2026-16847HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%