Falhas do tipo CWE-787

5.182 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-2026-83601MEDIUMNetdata: Streaming protocol dimension slot has no upper-bound guard, allowing integer overflow and out-of-bounds writeEPSS 0.4%CVE-2026-3920HIGHOut of bounds memory access in WebML in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruptioEPSS 0.4%CVE-2024-36274HIGHOut-of-bounds write in the Intel(R) 800 Series Ethernet Driver for Intel(R) Ethernet Adapter Complete Driver Pack before versions 29.1 may aEPSS 0.4%CVE-2026-14422HIGHOut of bounds read and write in Tint in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to potentially perform out of bounds EPSS 0.4%CVE-2022-35701HIGHAdobe Bridge SVG File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-1489MEDIUMGlib: glib: memory corruption via integer overflow in unicode case conversionEPSS 0.4%CVE-2024-39377HIGHMedia Encoder | Out-of-bounds Write (CWE-787)EPSS 0.4%CVE-2026-28825HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, EPSS 0.4%CVE-2026-0310HIGHPAN-OS: Buffer Overflow Vulnerability via XML ProcessingEPSS 0.4%CVE-2024-11422HIGHDWFX File Parsing Vulnerabilities in Autodesk Navisworks Desktop SoftwareEPSS 0.4%CVE-2026-3062HIGHOut of bounds read and write in Tint in Google Chrome on Mac prior to 145.0.7632.116 allowed a remote attacker to perform out of bounds memoEPSS 0.4%CVE-2026-28819MEDIUMAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS SequoiaEPSS 0.4%CVE-2026-24822CRITICALa heap-based buffer overflow vulnerability in ttttupup/wxhelper via src/mongoose.EPSS 0.4%CVE-2026-24823CRITICALA heap-based buffer over-read or buffer overflow vulnerability in FASTSHIFT/X-TRACKEPSS 0.4%CVE-2025-55118HIGHBMC Control-M/Agent memory corruption in SSL/TLS communicationEPSS 0.4%CVE-2022-32908HIGHA memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7EPSS 0.4%CVE-2025-23350CRITICALNVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may causEPSS 0.4%CVE-2025-23351CRITICALNVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may causEPSS 0.4%CVE-2025-11624LOWBuffer overwrite when processing file handles with the SFTP serverEPSS 0.4%CVE-2024-50206CRITICALnet: ethernet: mtk_eth_soc: fix memory corruption during fq dma initEPSS 0.4%