Falhas do tipo CWE-121

3.840 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-2026-43831HIGHtbcEPSS 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-2026-43829HIGHtbcEPSS 0.4%CVE-2026-4185MEDIUMGPAC MP4Box swf_parse.c swf_def_bits_jpeg 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-2025-41732CRITICALStack-based buffer overflow via unsafe sscanf in check_cookie()EPSS 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-2011-10012HIGHNetOp Remote Control Client 9.5 .dws File Buffer OverflowEPSS 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-2025-0373MEDIUMBuffer overflow in some filesystems via NFSEPSS 0.4%CVE-2012-10057HIGHLattice Semiconductor ispVM System 18.0.2 XCF File Handling Buffer OverflowEPSS 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%