Weaknesses of type CWE-121

3,824 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-2023-33219CRITICALStack Buffer Overflow when checking retrofit packageEPSS 1.1%CVE-2023-33218CRITICALStack Buffer Overflow in a binary run at upgrade startupEPSS 1.1%CVE-2023-51613MEDIUMD-Link DIR-X3260 prog.cgi SetDynamicDNSSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-35743HIGHD-Link DAP-2622 DDP Configuration Restore Auth Password Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2010-20119HIGHCommuniCrypt Mail <= 1.16 ANSMTP/AOSMTP ActiveX Control Buffer OverflowEPSS 1.1%CVE-2025-34107HIGHWinaXe 7.7 FTP Client Remote Buffer OverflowEPSS 1.1%CVE-2026-3613HIGHWavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflowEPSS 1.1%CVE-2021-26567—Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filEPSS 1.1%CVE-2022-42444MEDIUMIBM App Connect Enterprise denial of serviceEPSS 1.1%CVE-2024-51979HIGHAuthenticated stack based buffer overflow affecting multiple models from Brother Industries, Ltd, FUJIFILM Business Innovation, Ricoh, and Konica Minolta, Inc.EPSS 1.1%CVE-2023-51618MEDIUMD-Link DIR-X3260 prog.cgi SetWLanRadioSecurity Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51621MEDIUMD-Link DIR-X3260 prog.cgi SetDeviceSettings Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51614MEDIUMD-Link DIR-X3260 prog.cgi SetQuickVPNSettings Password Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51620MEDIUMD-Link DIR-X3260 prog.cgi SetIPv6PppoeSettings Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51623MEDIUMD-Link DIR-X3260 prog.cgi SetAPClientSettings Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51622MEDIUMD-Link DIR-X3260 prog.cgi SetTriggerPPPoEValidate Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51616MEDIUMD-Link DIR-X3260 prog.cgi SetSysEmailSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51615MEDIUMD-Link DIR-X3260 prog.cgi SetQuickVPNSettings PSK Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51619MEDIUMD-Link DIR-X3260 prog.cgi SetMyDLinkRegistration Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%CVE-2023-51617MEDIUMD-Link DIR-X3260 prog.cgi SetWanSettings Stack-Based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.1%