Falhas do tipo CWE-787

5.156 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em um endereço de memória fora da área alocada para um buffer ou variável. O código não valida o tamanho ou índice antes de gravar, permitindo sobrescrita de dados adjacentes, corrupção de estruturas críticas ou execução de código arbitrário.

Exemplo

Um formulário web que copia dados do usuário para um buffer de 256 bytes sem validar o tamanho da entrada. Se o atacante envia 500 bytes, a escrita transborda e sobrescreve a pilha, podendo hijackear o endereço de retorno da função.

Como mitigar

Use funções seguras de cópia (strncpy, strlcpy ao invés de strcpy; memcpy com tamanho máximo explícito) e sempre valide comprimento e índices antes de escrever. Em linguagens modernas, prefira estruturas com bounds-checking automático (arrays em Java, Rust, etc).

CVE-2026-34589HIGHOpenEXR: DWA Lossy Decoder Heap Out-of-Bounds WriteEPSS 0.5%CVE-2026-17264MEDIUMMedixant RadiAnt DICOM Out-of-bounds writeEPSS 0.5%CVE-2024-23120HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.5%CVE-2026-45770HIGHSuricata lua: excessive flow variable registration can bypass sandboxEPSS 0.5%CVE-2024-45539HIGHOut-of-bounds write vulnerability in cgi components in Synology DiskStation Manager (DSM) before 7.2.1-69057-2 and 7.2.2-72806 and Synology EPSS 0.5%CVE-2026-34195HIGHGPU DDK - Kernel heap OOB write in PMRChangeSparseMemOSMem due to incorrect physical page translation from virtual page indexesEPSS 0.5%CVE-2026-43815HIGHA buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS TahoeEPSS 0.5%CVE-2026-84444HIGHlibheif uncompressed tiled image encoding allows out-of-bounds writeEPSS 0.5%CVE-2025-2750MEDIUMOpen Asset Import Library Assimp CSM File CSMLoader.cpp InternReadFile out-of-bounds writeEPSS 0.5%CVE-2023-39485HIGHPDF-XChange Editor JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-17272HIGHIBM i is Affected By a Denial of Service in HTTP Server []EPSS 0.5%CVE-2026-28972MEDIUMAn out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 andEPSS 0.5%CVE-2026-86882MEDIUMAn 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 0.5%CVE-2026-57021MEDIUMJunos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crashEPSS 0.5%CVE-2026-68579HIGHFreeRDP before 3.30.0 Heap Overflow via CliprdrStream_ReadEPSS 0.5%CVE-2022-41902HIGHOut of bounds write in grappler in TensorflowEPSS 0.5%CVE-2021-3696—A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap EPSS 0.5%CVE-2025-0143MEDIUMZoom Workplace Apps for Linux - Out-of-bounds WriteEPSS 0.5%CVE-2026-13087HIGHKernel: heap out-of-bounds write in the linux kernel rpc-over-rdma server reply path...EPSS 0.5%CVE-2024-23969HIGHChargePoint Home Flex wlanchnllst Out-Of-Bounds WriteEPSS 0.5%