Fallos del tipo CWE-787
5729 resultadosEscrita fora dos limites de memória
Ocorre quando um programa escreve dados em uma posição de memória fora do intervalo alocado para um buffer, array ou estrutura. O atacante aproveita para sobrescrever dados adjacentes (variáveis, ponteiros, pilha de retorno), alterando o comportamento da aplicação ou assumindo controle total do sistema.
Ejemplo
Um programa lê 256 bytes de entrada do usuário e copia para um buffer de 64 bytes sem validação. O atacante envia 300 bytes, que transbordam o buffer e sobrescrevem o endereço de retorno na pilha, permitindo execução de código arbitrário.
Cómo mitigar
Sempre validar tamanho de entrada contra o limite do buffer antes de copiar (usar strncpy, snprintf em vez de strcpy, sprintf). Em linguagens modernas, usar estruturas bounds-checked (Rust, C# arrays) ou linters que detectem padrões perigosos.
CVE-2020-27857HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 4.0%CVE-2024-39423HIGHZDI-CAN-24182: New Vulnerability Report - Adobe Acrobat Reader DC AcroForm Annotation Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 3.9%CVE-2023-48315HIGHAzure RTOS NetX Duo Remote Code Execution VulnerabilityEPSS 3.9%CVE-2022-47942HIGHAn issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacEPSS 3.9%CVE-2020-17431HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.9%CVE-2020-17421HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.9%CVE-2020-17419HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.9%CVE-2020-17424HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.9%CVE-2020-17430HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.9%CVE-2018-17692—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit PhantomPDF 9.2.0.9297. User interaEPSS 3.9%CVE-2019-13323HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.909. User interacEPSS 3.9%CVE-2020-16918HIGHBase3D Remote Code Execution VulnerabilityEPSS 3.9%CVE-2020-9674HIGHAdobe Bridge versions 10.0.3 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code exeEPSS 3.9%CVE-2025-24201CRITICALAn out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in Safari 18.3.1, iOS 1EPSS 3.8%KEVCVE-2020-9676HIGHAdobe Bridge versions 10.0.3 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code exeEPSS 3.8%CVE-2020-17425HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.8%CVE-2020-17418HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.8%CVE-2024-0519HIGHOut of bounds memory access in V8 in Google Chrome prior to 120.0.6099.224 allowed a remote attacker to potentially exploit heap corruption EPSS 3.8%KEVCVE-2025-24118CRITICALThe issue was addressed with improved memory handling. This issue is fixed in iPadOS 17.7.4, macOS Sequoia 15.3, macOS Sonoma 14.7.3. An appEPSS 3.8%CVE-2021-35990HIGHAdobe Bridge JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 3.7%