Fallos del tipo CWE-121

3825 resultados

Estouro de buffer na pilha

Ocorre quando código escreve dados além dos limites de um buffer alocado na pilha (stack), sobrescrevendo informações críticas como endereços de retorno ou variáveis locais. Um atacante pode explorar isso para executar código arbitrário ou causar crash da aplicação.

Ejemplo

Uma função copia uma string de entrada diretamente em um array de 64 bytes sem validar o tamanho: `char buffer[64]; strcpy(buffer, user_input);` Se o usuário enviar uma string com 200 bytes, ela sobrescreverá o endereço de retorno e pode redirecionar a execução para código malicioso.

Cómo mitigar

Use funções seguras com limite de tamanho (`strncpy`, `snprintf`), valide e sanitize entradas antes de copiar, implemente proteções em tempo de execução (stack canaries, ASLR, DEP) e considere usar linguagens com verificação de limites automática quando possível.

CVE-2025-6373HIGHD-Link DIR-619L formWlSiteSurvey formSetWizard1 stack-based overflowEPSS 0.9%CVE-2026-45648HIGHWindows Active Directory Domain Services Remote Code Execution VulnerabilityEPSS 0.9%CVE-2024-1179HIGHTP-Link Omada ER605 DHCPv6 Client Options Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2023-44016HIGHTenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the deviceId parameter in the addWiEPSS 0.9%CVE-2023-44014HIGHTenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain multiple stack overflows in the formSetMacFilterCfg funcEPSS 0.9%CVE-2023-44013HIGHTenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the list parameter in the fromSetIpEPSS 0.9%CVE-2023-44017HIGHTenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the timeZone parameter in the fromSEPSS 0.9%CVE-2023-44019HIGHTenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the mac parameter in the GetParentCEPSS 0.9%CVE-2026-82592CRITICALD-Link DIR-825M Disk Formatting Handler Endpoint formDiskFormat sub_46725C stack-based overflowEPSS 0.9%CVE-2026-90680CRITICALD-Link DIR-823G HNAP1 SetStaticRouteSettings strcpy stack-based overflowEPSS 0.9%CVE-2026-82593CRITICALD-Link DIR-825M LTE Module Firmware Upgrade formLtefotaUpgradeFibocom sub_41802C stack-based overflowEPSS 0.9%CVE-2026-90693CRITICALD-Link DIR-878 WAN Settings SetWan3Settings stack-based overflowEPSS 0.9%CVE-2026-5815HIGHD-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflowEPSS 0.9%CVE-2026-90692CRITICALD-Link DIR-878 Dynamic DNS IPv6 Settings SetDynamicDNSIPv6Settings stack-based overflowEPSS 0.9%CVE-2024-23967HIGHAutel MaxiCharger AC Elite Business C50 WebSocket Base64 Decoding Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-69762CRITICALTenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the list parameter, which can cause memory corruption and enablEPSS 0.9%CVE-2025-69763CRITICALTenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and enaEPSS 0.9%CVE-2022-1211MEDIUMtildearrow Furnace FUR to VGM Converter stack-based overflowEPSS 0.9%CVE-2024-0926MEDIUMTenda AC10U formWifiWpsOOB stack-based overflowEPSS 0.9%CVE-2024-0925MEDIUMTenda AC10U formSetVirtualSer stack-based overflowEPSS 0.9%