Weaknesses of type CWE-787

5,146 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-2026-3548HIGHBuffer overflow in CRL number parsing in wolfSSLEPSS 0.6%CVE-2024-23611HIGHOut of Bounds Write Due to Missing Bounds Check in LabVIEWEPSS 0.6%CVE-2026-3298HIGHOut-of-bounds write in Windows asyncio.ProacterEventLoop.sock_recvfrom_into() when using nbytesEPSS 0.6%CVE-2026-58096HIGHppp(8): missing length validation in LcpDecodeConfig()EPSS 0.6%CVE-2026-8946HIGHIncorrect boundary conditions in the Audio/Video: Web Codecs componentEPSS 0.6%CVE-2025-43421MEDIUMMultiple issues were addressed by disabling array allocation sinking. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS TaEPSS 0.6%CVE-2023-35871HIGHMemory Corruption vulnerability in SAP Web DispatcherEPSS 0.6%CVE-2017-20229CRITICALMAWK 1.3.3-17 Stack-Based Buffer OverflowEPSS 0.6%CVE-2026-10665HIGHHeap buffer overflow on WireGuard receive path via unbounded incoming packet lengthEPSS 0.6%CVE-2023-4735MEDIUMOut-of-bounds Write in vim/vimEPSS 0.6%CVE-2026-18022HIGHpgvector buffer overflow via integer wraparound in IVFFlat index build on 32-bit systemsEPSS 0.6%CVE-2024-47897HIGHGPU DDK - PVRSRVRGXGetEnabledHWPerfBlocksKM off-by-one OOB writeEPSS 0.6%CVE-2026-59691HIGHGstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferEPSS 0.6%CVE-2026-40493CRITICALSAIL has heap buffer overflow in PSD decoder — bpp mismatch in LAB 16-bit modeEPSS 0.6%CVE-2026-27703HIGHRIOT has an Out-of-Bounds Write in nanoCoAP HandlerEPSS 0.6%CVE-2024-24423HIGHThe Linux Foundation Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486) was discovered to contain a buffer overfEPSS 0.6%CVE-2024-24422HIGHThe Linux Foundation Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486) was discovered to contain a stack overflEPSS 0.6%CVE-2026-57159HIGHPJSIP: SDP parser out-of-bounds write in remote payload-type map maintenanceEPSS 0.6%CVE-2024-2615CRITICALMemory safety bugs present in Firefox 123. Some of these bugs showed evidence of memory corruption and we presume that with enough effort soEPSS 0.6%CVE-2022-41202HIGHDue to lack of proper memory management, when a victim opens a manipulated Visual Design Stream (.vds, vds.x3d) file received from untrustedEPSS 0.6%