Weaknesses of type CWE-121

3,825 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-2017-16256HIGHMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmwarEPSS 0.9%CVE-2017-16299HIGHMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmwarEPSS 0.9%CVE-2017-16260HIGHMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmwarEPSS 0.9%CVE-2017-16266HIGHMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmwarEPSS 0.9%CVE-2017-16327HIGHMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmwarEPSS 0.9%CVE-2026-76689HIGHAuthenticated Buffer Overflow Vulnerability leads to Remote Code Execution or Denial-of-Service in HPE Networking EdgeConnect SD-WAN GatewaysEPSS 0.9%CVE-2026-64831HIGHFFmpeg 8.0 - 8.1.2 Stack Buffer Overflow in Vulkan HEVC DecoderEPSS 0.9%CVE-2026-4172HIGHTRENDnet TEW-632BRP HTTP POST Request ping_response.cgi stack-based overflowEPSS 0.9%CVE-2025-3887HIGHGStreamer H265 Codec Parsing Stack-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-7853HIGHTenda FH451 SetIpBind fromSetIpBind stack-based overflowEPSS 0.8%CVE-2026-80146CRITICALLantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom readEPSS 0.8%CVE-2026-80147CRITICALLantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom writeEPSS 0.8%CVE-2026-51846CRITICALIn Tenda AC7 v15.03.06.44, the wanSpeed parameter of the route /goform/AdvSetMacMtuWan has a stack buffer overflow vulnerability that can leEPSS 0.8%CVE-2025-9748HIGHTenda CH22 httpd IPSECsave fromIpsecitem stack-based overflowEPSS 0.8%CVE-2026-4188HIGHD-Link DIR-619L boa formSchedule stack-based overflowEPSS 0.8%CVE-2024-0927MEDIUMTenda AC10U fromAddressNat stack-based overflowEPSS 0.8%CVE-2024-28551HIGHTenda AC18 V15.03.05.05 has a stack overflow vulnerability in the ssid parameter of form_fast_setting_wifi_set function.EPSS 0.8%CVE-2026-5548HIGHTenda AC10 httpd fromSysToolChangePwd stack-based overflowEPSS 0.8%CVE-2025-60699MEDIUMA buffer overflow vulnerability exists in the TOTOLINK A950RG Router firmware V5.9c.4592_B20191022_ALL within the `global.so` binary. The `gEPSS 0.8%CVE-2024-37049MEDIUMQTS, QuTS heroEPSS 0.8%