Fallos del tipo CWE-119

3263 resultados

Corrupção de memória genérica

Fraqueza genérica que descreve quando software escreve dados fora dos limites esperados de um buffer ou estrutura de memória, sobrescrevendo dados adjacentes. Permite ao atacante corromper dados críticos, executar código arbitrário ou derrubar a aplicação.

Ejemplo

Um programa C que copia uma string do usuário para um array fixo sem validar comprimento: strcpy(buffer, user_input) em um buffer de 64 bytes, quando o input tem 200 caracteres. Os dados transbordados sobrescrevem variáveis, ponteiros ou endereços de retorno na pilha.

Cómo mitigar

Use funções seguras de cópia (strncpy, strlcpy, memcpy com tamanho validado), implemente validação de entrada e comprimento antes de qualquer operação de escrita em buffer, e ative proteções de compilador como stack canaries e ASLR. Em linguagens modernas (Rust, Go), o gerenciamento automático de memória elimina essa classe de bugs.

CVE-2017-12371—A "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced RecEPSS 3.0%CVE-2021-3570—A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a rEPSS 3.0%CVE-2018-4344HIGHA memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOEPSS 2.9%KEVCVE-2021-42781—Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the EPSS 2.9%CVE-2025-4448HIGHD-Link DIR-619L formEasySetupWizard buffer overflowEPSS 2.9%CVE-2025-4450HIGHD-Link DIR-619L formSetEasy_Wizard buffer overflowEPSS 2.9%CVE-2025-4451HIGHD-Link DIR-619L formSetWAN_Wizard52 buffer overflowEPSS 2.9%CVE-2025-4449HIGHD-Link DIR-619L formEasySetupWizard3 buffer overflowEPSS 2.9%CVE-2025-4452HIGHD-Link DIR-619L formSetWizard2 buffer overflowEPSS 2.9%CVE-2025-5228HIGHD-Link DI-8100 jhttpd login.cgi httpd_get_parm stack-based overflowEPSS 2.9%CVE-2020-3146HIGHCisco RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote Command Execution Multiple VulnerabilitiesEPSS 2.9%CVE-2017-12367—A "Cisco WebEx Network Recording Player Denial of Service Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced RecordiEPSS 2.8%CVE-2025-15234HIGHTenda M3 setInternetLanInfo formSetRemoteInternetLanInfo heap-based overflowEPSS 2.8%CVE-2017-3862—Multiple vulnerabilities in the EnergyWise module of Cisco IOS (12.2 and 15.0 through 15.6) and Cisco IOS XE (3.2 through 3.18) could allow EPSS 2.8%CVE-2021-42782—Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the liEPSS 2.8%CVE-2017-3861—Multiple vulnerabilities in the EnergyWise module of Cisco IOS (12.2 and 15.0 through 15.6) and Cisco IOS XE (3.2 through 3.18) could allow EPSS 2.8%CVE-2017-3860—Multiple vulnerabilities in the EnergyWise module of Cisco IOS (12.2 and 15.0 through 15.6) and Cisco IOS XE (3.2 through 3.18) could allow EPSS 2.8%CVE-2017-3863—Multiple vulnerabilities in the EnergyWise module of Cisco IOS (12.2 and 15.0 through 15.6) and Cisco IOS XE (3.2 through 3.18) could allow EPSS 2.8%CVE-2025-6121CRITICALD-Link DIR-632 HTTP POST Request get_pure_content stack-based overflowEPSS 2.8%CVE-2021-21899HIGHA code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A speEPSS 2.8%