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-2018-0292A vulnerability in the Internet Group Management Protocol (IGMP) Snooping feature of Cisco NX-OS Software could allow an unauthenticated, adEPSS 1.6%CVE-2025-4150HIGHNetgear EX6200 sub_54340 buffer overflowEPSS 1.5%CVE-2025-31277HIGHThe issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOEPSS 1.5%KEVCVE-2021-40117HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Denial of Service VulnerabilityEPSS 1.5%CVE-2021-3942CRITICALCertain HP Print products and Digital Sending products may be vulnerable to potential remote code execution and buffer overflow with use of EPSS 1.5%CVE-2021-31883HIGHA vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions EPSS 1.5%CVE-2021-31882MEDIUMA vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions EPSS 1.5%CVE-2026-7853CRITICALD-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflowEPSS 1.5%CVE-2025-9938HIGHD-Link DI-8400 yyxz.asp yyxz_dlink_asp stack-based overflowEPSS 1.5%CVE-2021-31493HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User inEPSS 1.5%CVE-2019-1926HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesEPSS 1.5%CVE-2024-23213HIGHThe issue was addressed with improved memory handling. This issue is fixed in Safari 17.3, iOS 16.7.5 and iPadOS 16.7.5, iOS 17.3 and iPadOSEPSS 1.5%CVE-2025-7911HIGHD-Link DI-8100 jhttpd upnp_ctrl.asp sprintf stack-based overflowEPSS 1.5%CVE-2014-0779Schneider Electric StruxureWare SCADA Expert ClearSCADA Improper Restriction of Operations within the Bounds of a Memory BufferEPSS 1.5%CVE-2019-1640HIGHCisco Webex Network Recording Player Arbitrary Code Execution VulnerabilitiesEPSS 1.5%CVE-2019-1637HIGHCisco Webex Network Recording Player Arbitrary Code Execution VulnerabilitiesEPSS 1.5%CVE-2019-1639HIGHCisco Webex Network Recording Player Arbitrary Code Execution VulnerabilitiesEPSS 1.5%CVE-2019-1638HIGHCisco Webex Network Recording Player Arbitrary Code Execution VulnerabilitiesEPSS 1.5%CVE-2023-33975CRITICALRIOT-OS vulnerable to Out of Bounds Write in _rbuf_addEPSS 1.5%CVE-2023-28391CRITICALA memory corruption vulnerability exists in the HTTP Server header parsing functionality of Weston Embedded uC-HTTP v3.01.01. Specially crafEPSS 1.5%