Falhas do tipo CWE-121

3.839 resultados

Estouro de buffer na pilha

Ocorre quando código escreve mais dados em um buffer alocado na pilha do que sua capacidade permite, sobrescrevendo dados adjacentes (variáveis, endereços de retorno). Um atacante pode explorar isso para executar código arbitrário ou crashar a aplicação alterando o fluxo de execução.

Exemplo

Uma função C que copia uma string do usuário diretamente em um array local sem validar tamanho: `char buffer[10]; strcpy(buffer, user_input);`. Se user_input tiver 50 caracteres, os 40 extras sobrescrevem a pilha, incluindo potencialmente o endereço de retorno da função.

Como mitigar

Use funções seguras que limitam escrita (strncpy, snprintf em vez de strcpy/sprintf), valide tamanho de entrada antes de copiar, ative proteções do compilador (stack canaries, ASLR) e use ferramentas de análise estática para detectar cópias sem limite.

CVE-2026-10123HIGHTRENDnet TEW-432BRP formSetDomainFilter stack-based overflowEPSS 0.5%CVE-2026-10119HIGHTRENDnet TEW-432BRP formSetMACFilter stack-based overflowEPSS 0.5%CVE-2026-10293HIGHUTT HiPER 1200GW formFireWall strcpy stack-based overflowEPSS 0.5%CVE-2026-10292HIGHUTT HiPER 1200GW formTaskEdit strcpy stack-based overflowEPSS 0.5%CVE-2026-10161HIGHTRENDnet TEW-432BRP formResetStatistic stack-based overflowEPSS 0.5%CVE-2026-10183HIGHTRENDnet TEW-432BRP formWlanSetup stack-based overflowEPSS 0.5%CVE-2026-10124HIGHShibby Tomato Zserv ripd rip_zebra_read_ipv4 stack-based overflowEPSS 0.5%CVE-2026-10160HIGHTRENDnet TEW-432BRP formSetEnableWizard stack-based overflowEPSS 0.5%CVE-2022-3159HIGHThe APDFL.dll contains a stack-based buffer overflow vulnerability that could be triggered while parsing specially crafted PDF files. This EPSS 0.5%CVE-2026-10162HIGHTRENDnet TEW-432BRP formSetPassword stack-based overflowEPSS 0.5%CVE-2026-10829HIGHA stack-based buffer overflow vulnerability has been found in the NPort W2150A-W4/W2250A-W4 Series version 1.5 and earlier. This vulnerabiliEPSS 0.5%CVE-2026-10122HIGHTRENDnet TEW-432BRP formSetProtocolFilter stack-based overflowEPSS 0.5%CVE-2026-10165HIGHEdimax BR-6478AC POST Request formWanTcpipSetup stack-based overflowEPSS 0.5%CVE-2026-19318CRITICALFireware OS Pre-Authentication Stack Buffer Overflow in iked Allows Remote Code ExecutionEPSS 0.5%CVE-2019-25365HIGHChaosPro 2.0 - Buffer OverflowEPSS 0.5%CVE-2024-23138HIGHStack-based Overflow Vulnerability in the TrueViewTM Desktop SoftwareEPSS 0.5%CVE-2026-43798CRITICALA single crafted SSH message gives an unauthenticated network attacker an out-of-bounds stack write of attacker-controlled length and contenEPSS 0.5%CVE-2019-25319HIGHDomain Quester Pro 6.02 - Stack Overflow (SEH)EPSS 0.5%CVE-2025-25741MEDIUMD-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the IPv6_PppoePassword parameter in thEPSS 0.5%CVE-2023-42069HIGHPDF-XChange Editor PDF File Parsing Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.5%