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-2023-31247CRITICALA memory corruption vulnerability exists in the HTTP Server Host header parsing functionality of Weston Embedded uC-HTTP v3.01.01. A specialEPSS 1.7%CVE-2023-28379CRITICALA memory corruption vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially craEPSS 1.7%CVE-2025-7544HIGHTenda AC1206 setMacFilterCfg formSetMacFilterCfg stack-based overflowEPSS 1.7%CVE-2024-23617CRITICALSymantec Data Loss Prevention Buffer OverflowEPSS 1.7%CVE-2023-3138A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values EPSS 1.7%CVE-2021-1278HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.7%CVE-2019-12807Alzip 10.83 and earlier version contains a stack-based buffer overflow vulnerability, caused by improper bounds checking during the parsing EPSS 1.6%CVE-2020-3500MEDIUMCisco StarOS IPv6 Denial of Service VulnerabilityEPSS 1.6%CVE-2025-4871MEDIUMPCMan FTP Server REST Command buffer overflowEPSS 1.6%CVE-2020-11058LOWImproper Restriction of Operations within the Bounds of a Memory Buffer in FreeRDPEPSS 1.6%CVE-2024-23614CRITICALSymantec Messaging Gateway Buffer OverflowEPSS 1.6%CVE-2017-12278A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, rEPSS 1.6%CVE-2026-8452HIGHMemory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of ServiceEPSS 1.6%KEVCVE-2021-34783HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Software-Based SSL/TLS Denial of Service VulnerabilityEPSS 1.6%CVE-2019-6571A vulnerability has been identified in SIEMENS LOGO!8 (6ED1052-xyyxx-0BA8 FS:01 to FS:06 / Firmware version V1.80.xx and V1.81.xx), SIEMENS EPSS 1.6%CVE-2025-8169HIGHD-Link DIR-513 HTTP POST Request formSetWanPPTPpath formSetWanPPTPcallback buffer overflowEPSS 1.6%CVE-2025-1539HIGHD-Link DAP-1320 storagein.pd-XXXXXX replace_special_char stack-based overflowEPSS 1.6%CVE-2017-6669Multiple buffer overflow vulnerabilities exist in the Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) files. An attEPSS 1.6%CVE-2025-4148HIGHNetgear EX6200 sub_503FC buffer overflowEPSS 1.6%CVE-2025-4149HIGHNetgear EX6200 sub_54014 buffer overflowEPSS 1.6%