Fallos del tipo CWE-121

3836 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-2026-22262MEDIUMSuricata datasets: stack overflow when saving a setEPSS 0.5%CVE-2025-15008MEDIUMTenda WH450 HTTP Request L7Port stack-based overflowEPSS 0.5%CVE-2023-32973LOWQTS, QuTS hero, QuTScloudEPSS 0.5%CVE-2023-32972LOWQTS, QuTS hero, QuTScloudEPSS 0.5%CVE-2023-41277MEDIUMQTS, QuTS hero, QuTScloudEPSS 0.5%CVE-2025-34123HIGHVideoCharge Studio 2.12.3.685 SEH Buffer Overflow via .VSC FileEPSS 0.5%CVE-2023-32971LOWQTS, QuTS hero, QuTScloudEPSS 0.5%CVE-2023-41278MEDIUMQTS, QuTS hero, QuTScloudEPSS 0.5%CVE-2026-51105HIGHBuffer Overflow vulnerability in aMULE-Project aMule v.2.3.3 allows a remote attacker to cause a denial of service via the OP_SERVERMESSAGE EPSS 0.5%CVE-2025-66047CRITICALSeveral stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A speciaEPSS 0.5%CVE-2025-66044CRITICALSeveral stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A speciaEPSS 0.5%CVE-2025-66045CRITICALSeveral stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A speciaEPSS 0.5%CVE-2025-66046CRITICALSeveral stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A speciaEPSS 0.5%CVE-2025-65804MEDIUMTenda AX3 v16.03.12.11 contains a stack overflow in formSetIptv via the iptvType parameter, which can cause memory corruption and enable remEPSS 0.5%CVE-2023-27498HIGHMemory Corruption vulnerability in SAP Host Agent (SAPOSCOL)EPSS 0.5%CVE-2020-37000HIGHFree MP3 CD Ripper 2.8 - Stack Buffer Overflow (SEH + Egghunter)EPSS 0.5%CVE-2020-36961HIGH10-Strike Network Inventory Explorer 8.65 - Buffer Overflow (SEH)EPSS 0.5%CVE-2026-78010HIGHFireware OS Stack-Based Buffer Overflow in iked Allows Unauthenticated Denial of ServiceEPSS 0.5%CVE-2017-9647—A Stack-Based Buffer Overflow issue was discovered in the Continental AG Infineon S-Gold 2 (PMB 8876) chipset on BMW several models producedEPSS 0.5%CVE-2026-82478MEDIUMNASA Trick TCP Socket JSONVariableServerThread.cpp parse_request stack-based overflowEPSS 0.5%