Falhas do tipo CWE-787

5.210 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-2022-39148—A vulnerability has been identified in Parasolid V33.1 (All versions < V33.1.262), Parasolid V33.1 (All versions >= V33.1.262 < V33.1.263), EPSS 0.3%CVE-2022-39155—A vulnerability has been identified in Parasolid V33.1 (All versions < V33.1.262), Parasolid V33.1 (All versions >= V33.1.262 < V33.1.263), EPSS 0.3%CVE-2024-45469HIGHA vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualization V14.3 (All versiEPSS 0.3%CVE-2024-45471HIGHA vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualization V14.3 (All versiEPSS 0.3%CVE-2023-0249HIGHCVE-2023-0249EPSS 0.3%CVE-2023-32804—Mali GPU Userspace Driver can make an Out-of-Bounds accessEPSS 0.3%CVE-2022-47908HIGHStack-based buffer overflow vulnerability in V-Server v4.0.12.0 and earlier allows a local attacker to obtain the information and/or executeEPSS 0.3%CVE-2018-9470HIGHIn bff_Scanner_addOutPos of Scanner.c, there is a possible out-of-bounds write due to an incorrect bounds check. This could lead to remote eEPSS 0.3%CVE-2026-18460MEDIUMOff-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.EPSS 0.3%CVE-2026-102761CRITICALNetX Duo's WebSocket client resets the unmasking cursor to the first `NX_PACKET` each time it advances through a chained packet, while the lEPSS 0.3%CVE-2023-0969LOWGlobal read overflow in Z/IP GatewayEPSS 0.3%CVE-2026-12019HIGHHeap buffer overflow in Codecs in Google Chrome on Linux and ChromeOS prior to 149.0.7827.115 allowed a remote attacker who had compromised EPSS 0.3%CVE-2023-27933MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Monterey 1EPSS 0.3%CVE-2026-12314HIGHMemory safety bug fixed in Firefox 152EPSS 0.3%CVE-2022-43509HIGHOut-of-bounds write vulnerability exists in CX-Programmer v.9.77 and earlier, which may lead to information disclosure and/or arbitrary codeEPSS 0.3%CVE-2025-47725HIGHOut-of-bounds Write in CNCSoftEPSS 0.3%CVE-2026-40003MEDIUMUSB-based arbitrary memory write vulnerability in ZTE ZX297520V3 soc BootROMEPSS 0.3%CVE-2025-47726HIGHOut-of-bounds Write in CNCSoftEPSS 0.3%CVE-2025-47727HIGHOut-of-bounds Write in CNCSoftEPSS 0.3%CVE-2026-12310HIGHMemory safety bug fixed in Firefox 152EPSS 0.3%