Fallos del tipo CWE-121

3840 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-2026-43832HIGHtbcEPSS 0.4%CVE-2023-38070HIGHA vulnerability has been identified in JT2Go (All versions < V14.3.0.1), Teamcenter Visualization V13.3 (All versions < V13.3.0.12), TeamcenEPSS 0.4%CVE-2026-8733MEDIUMInvestintech SlimPDFReader SlimPDFReader.exe sub_3B4610 stack-based overflowEPSS 0.4%CVE-2026-19933MEDIUMDefaultFuction Customer-Relationship-Management-In-C-Project Customer Search gets stack-based overflowEPSS 0.4%CVE-2024-32303HIGHTenda AC15 v15.03.20_multi, v15.03.05.19, and v15.03.05.18 firmware has a stack overflow vulnerability located via the PPW parameter in the EPSS 0.4%CVE-2026-4185MEDIUMGPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflowEPSS 0.4%CVE-2011-10012HIGHNetOp Remote Control Client 9.5 .dws File Buffer OverflowEPSS 0.4%CVE-2024-35578HIGHTenda AX1806 v1.0.0.1 contains a stack overflow via the adv.iptv.stballvlans parameter in the function formSetIptv.EPSS 0.4%CVE-2025-41732CRITICALStack-based buffer overflow via unsafe sscanf in check_cookie()EPSS 0.4%CVE-2011-10015CRITICALCytel Studio <= 9.0 .CY3 File Stack Buffer OverflowEPSS 0.4%CVE-2018-1071—zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit thEPSS 0.4%CVE-2023-53886MEDIUMXlight FTP Server 3.9.3.6 Stack Buffer Overflow Vulnerability via Execute ProgramEPSS 0.4%CVE-2025-48721LOWQTS, QuTS heroEPSS 0.4%CVE-2012-10057HIGHLattice Semiconductor ispVM System 18.0.2 XCF File Handling Buffer OverflowEPSS 0.4%CVE-2025-0373MEDIUMBuffer overflow in some filesystems via NFSEPSS 0.4%CVE-2011-10016CRITICALReal Networks Netzip Classic 7.5.1.86 File Parsing Buffer OverflowEPSS 0.4%CVE-2026-36798MEDIUMShenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain multiple stack overflows in the formSetDebugCfgr function vEPSS 0.4%CVE-2020-37122MEDIUMSpotFTP-FTP Password Recover 2.4.8 - Denial of ServiceEPSS 0.4%CVE-2020-1664HIGHJunos OS: Buffer overflow vulnerability in device control daemonEPSS 0.4%CVE-2024-7502HIGHDelta Electronics DIAScreen Stack-Based Buffer OverflowEPSS 0.4%