Fallos del tipo CWE-119

3506 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-2020-3198CRITICALCisco IOS Software for Cisco Industrial Routers Arbitrary Code Execution VulnerabilitiesEPSS 4.6%CVE-2025-10443HIGHTenda AC9/AC15 exeCommand formexeCommand buffer overflowEPSS 4.6%CVE-2025-10773HIGHB-Link BL-AC2100 Web Management set_delshrpath_cfg delshrpath stack-based overflowEPSS 4.6%CVE-2021-31979HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 4.5%KEVCVE-2025-10385HIGHMercury KM08-708H GiGA WiFi Wave2 mcr_setSysAdm sub_450B2C buffer overflowEPSS 4.5%CVE-2019-6824—A CWE-119: Buffer Errors vulnerability exists in ProClima (all versions prior to version 8.0.0) which allows an unauthenticated, remote attaEPSS 4.5%CVE-2025-6436HIGHMemory safety bugs fixed in Firefox 140 and Thunderbird 140EPSS 4.3%CVE-2025-13445HIGHTenda AC21 SetIpMacBind stack-based overflowEPSS 4.2%CVE-2025-13446HIGHTenda AC21 SetSysTimeCfg stack-based overflowEPSS 4.2%CVE-2017-7506—spice versions though 0.13 are vulnerable to out-of-bounds memory access when processing specially crafted messages from authenticated attacEPSS 4.2%CVE-2020-17003HIGHBase3D Remote Code Execution VulnerabilityEPSS 4.2%CVE-2026-7857HIGHD-Link DI-8100 CGI user_group.asp sprintf buffer overflowEPSS 4.2%CVE-2019-12806—UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, EPSS 4.1%CVE-2019-11933—A heap buffer overflow bug in libpl_droidsonroids_gif before 1.2.19, as used in WhatsApp for Android before version 2.19.291 could allow remEPSS 4.1%CVE-2016-1421—A vulnerability in the web application for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileEPSS 4.1%CVE-2026-0840HIGHUTT 进取 520W formConfigNoticeConfig strcpy buffer overflowEPSS 4.1%CVE-2026-7851HIGHD-Link DI-8100 yyxz.asp sprintf stack-based overflowEPSS 4.1%CVE-2017-15126—A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure EPSS 4.1%CVE-2019-15992HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Code Execution VulnerabilityEPSS 4.1%CVE-2026-2962HIGHD-Link DWR-M960 Scheduled Reboot Configuration Endpoint formDateReboot sub_460F30 stack-based overflowEPSS 4.1%