Weaknesses of type CWE-121

3,850 results

Estouro de buffer na pilha

Ocorre quando um programa escreve mais dados em um buffer alocado na pilha do que ele pode conter, sobrescrevendo dados adjacentes (variáveis, endereços de retorno, ponteiros). Um atacante pode explorar isso para executar código arbitrário ou causar travamento.

Example

Um programa lê uma string do usuário com gets() ou strcpy() sem validar o tamanho, copiando 500 bytes para um buffer de 64 bytes. O excesso sobrescreve o endereço de retorno da função, permitindo desviar a execução para código malicioso.

How to mitigate

Use funções seguras (strncpy, fgets, snprintf) que aceitam limite de bytes; implemente verificações de limites explícitas no código; ative proteções do compilador/SO (stack canaries, DEP/NX, ASLR); use linguagens com verificação automática de limites ou ferramentas de análise estática.

CVE-2026-2657MEDIUMwren-lang wren Error Message wren_compiler.c printError stack-based overflowEPSS 0.2%CVE-2025-4447HIGHBuffer Overflow in Eclipse OpenJ9EPSS 0.2%CVE-2025-70305MEDIUMA stack overflow in the dmx_saf function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted .saf file.EPSS 0.2%CVE-2023-27406HIGHA vulnerability has been identified in Tecnomatix Plant Simulation (All versions < V2201.0006). The affected application is vulnerable to stEPSS 0.2%CVE-2023-24549HIGHA vulnerability has been identified in Solid Edge SE2022 (All versions < V222.0MP12), Solid Edge SE2023 (All versions < V223.0Update2). The EPSS 0.2%CVE-2025-23283HIGHNVIDIA vGPU software for Linux-style hypervisors contains a vulnerability in the Virtual GPU Manager, where a malicious guest could cause stEPSS 0.2%CVE-2026-67673MEDIUMA stack-based buffer overflow vulnerability exists in the cmd_edl function of OreSat Firmware v1.0. The vulnerability is triggered when procEPSS 0.2%CVE-2024-58115MEDIUMBuffer overflow vulnerability in the SVG parsing module of the ArkUI framework Impact: Successful exploitation of this vulnerability may affEPSS 0.2%CVE-2024-58116MEDIUMBuffer overflow vulnerability in the SVG parsing module of the ArkUI framework Impact: Successful exploitation of this vulnerability may affEPSS 0.2%CVE-2024-43031MEDIUMautMan v2.9.6 was discovered to contain an access control issue.EPSS 0.2%CVE-2025-36939CRITICALMultiple vulnerabilities exist in OpenThread's handling of MLE packets. An authenticated attacker on the same Thread network could send specEPSS 0.2%CVE-2024-7992HIGHAutodesk AutoCAD DWG Stack-Based Buffer Overflow Code Execution VulnerabilityEPSS 0.2%CVE-2024-7994HIGHStack-Based Buffer Overflow Vulnerability in Autodesk RevitEPSS 0.2%CVE-2023-40465HIGHImproper input leads to DoSEPSS 0.2%CVE-2025-0720MEDIUMMicroword eScan Antivirus Folder Watch List rtscanner removeExtraSlashes stack-based overflowEPSS 0.2%CVE-2023-6340MEDIUMSonicWall Capture Client version 3.7.10, NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. EPSS 0.2%CVE-2023-7206HIGHHorner Automation Cscape Stack-Based Buffer OverflowEPSS 0.2%CVE-2025-70083HIGHAn issue was discovered in OpenSatKit 2.2.1. The DirName field in the telecommand is provided by the ground segment and must be treated as uEPSS 0.2%CVE-2020-37121MEDIUMCODE::BLOCKS 16.01 - Buffer Overflow (SEH) UNICODEEPSS 0.2%CVE-2026-23995HIGHEVerest has stack buffer overflow in ifreq.ifr_name when interface name exceeds IFNAMSIZEPSS 0.2%