Fallos del tipo CWE-119

3262 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-2025-4496HIGHTOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflowEPSS 1.2%CVE-2025-0848HIGHTenda A18 HTTP POST Request SetCmdlineRun stack-based overflowEPSS 1.2%CVE-2025-4355HIGHTenda DAP-1520 api set_ws_action heap-based overflowEPSS 1.2%CVE-2025-4354HIGHTenda DAP-1520 storage check_dws_cookie stack-based overflowEPSS 1.2%CVE-2016-10011MEDIUMauthfile.c in sshd in OpenSSH before 7.4 does not properly consider the effects of realloc on buffer contents, which might allow local usersEPSS 1.2%CVE-2025-43186CRITICALThe issue was addressed with improved memory handling. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, macOS Sonoma 14.EPSS 1.2%CVE-2023-4234HIGHOfono: sms decoder stack-based buffer overflow remote code execution vulnerability within the decode_submit_report() functionEPSS 1.1%CVE-2025-6614HIGHD-Link DIR-619L formSetWANType_Wizard5 stack-based overflowEPSS 1.1%CVE-2025-6511HIGHNetgear EX6150 sub_410090 stack-based overflowEPSS 1.1%CVE-2025-6615HIGHD-Link DIR-619L formAutoDetecWAN_wizard4 stack-based overflowEPSS 1.1%CVE-2021-3470A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemEPSS 1.1%CVE-2025-2369HIGHTOTOLINK EX1800T cstecgi.cgi setPasswordCfg stack-based overflowEPSS 1.1%CVE-2025-2370HIGHTOTOLINK EX1800T cstecgi.cgi setWiFiExtenderConfig stack-based overflowEPSS 1.1%CVE-2023-22882MEDIUMDenial of Service in Zoom ClientsEPSS 1.1%CVE-2025-9089HIGHTenda AC20 SetIpMacBind sub_48E628 stack-based overflowEPSS 1.1%CVE-2025-4140HIGHNetgear EX6120 sub_30394 buffer overflowEPSS 1.1%CVE-2025-4145HIGHNetgear EX6200 sub_3D0BC buffer overflowEPSS 1.1%CVE-2025-4142HIGHNetgear EX6200 sub_3C8EC buffer overflowEPSS 1.1%CVE-2026-34159CRITICALllama.cpp: Unauthenticated RCE via GRAPH_COMPUTE buffer=0 bypass in llama.cpp RPC backendEPSS 1.1%CVE-2022-3640MEDIUMLinux Kernel Bluetooth l2cap_core.c l2cap_conn_del use after freeEPSS 1.1%