Falhas do tipo CWE-121

3.825 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-2024-0926MEDIUMTenda AC10U formWifiWpsOOB stack-based overflowEPSS 0.9%CVE-2022-28305HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.034.EPSS 0.9%CVE-2022-28306HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.034.EPSS 0.9%CVE-2022-28315HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.34. EPSS 0.9%CVE-2023-7213MEDIUMTotolink N350RT HTTP POST Request main stack-based overflowEPSS 0.9%CVE-2023-7214MEDIUMTotolink N350RT HTTP POST Request main stack-based overflowEPSS 0.9%CVE-2023-4264HIGHPotential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystemEPSS 0.9%CVE-2025-3161HIGHTenda AC10 ShutdownSetAdd stack-based overflowEPSS 0.9%CVE-2023-41225MEDIUMD-Link DIR-3040 prog.cgi SetIPv6PppoeSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-41228MEDIUMD-Link DIR-3040 prog.cgi SetUsersSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-41220MEDIUMD-Link DIR-3040 prog.cgi SetSysEmailSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-41219MEDIUMD-Link DIR-3040 prog.cgi SetWanSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-41227MEDIUMD-Link DIR-3040 prog.cgi SetTriggerPPPoEValidate Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-41226MEDIUMD-Link DIR-3040 prog.cgi SetMyDLinkRegistration Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2024-10283HIGHTenda RX9/RX9 Pro SetNetControlList sub_4337EC stack-based overflowEPSS 0.9%CVE-2023-41216MEDIUMD-Link DIR-3040 prog.cgi SetDynamicDNSSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2024-34942HIGHTenda FH1206 V1.2.0.8(8155)_EN was discovered to contain a stack-based buffer overflow vulnerability via the funcpara1 parameter at ip/goforEPSS 0.9%CVE-2025-13189HIGHD-Link DIR-816L gena.cgi genacgi_main stack-based overflowEPSS 0.9%CVE-2025-13191HIGHD-Link DIR-816L soap.cgi soapcgi_main stack-based overflowEPSS 0.9%CVE-2022-28304HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.034.EPSS 0.9%