Falhas do tipo CWE-120

3.248 resultados

Estouro de buffer clássico

A aplicação copia dados em um buffer sem validar o tamanho, permitindo que um atacante sobrescreva memória adjacente. Isso pode corromper variáveis, desviar o fluxo de execução ou injetar código malicioso que será executado com os mesmos privilégios da aplicação.

Exemplo

Um formulário web aceita um nome de usuário e o copia direto em um array de 32 bytes sem checar comprimento. Um atacante envia 200 bytes; o excesso sobrescreve o endereço de retorno da função, desviando a execução para código dele. Comum em CGI antigos, serviços network e binários C/C++ mal escritos.

Como mitigar

Use funções seguras (strncpy, strlcpy em vez de strcpy; snprintf em vez de sprintf) que respeitam limites. Sempre valide e sanitize entrada externa antes de copiar. Em C moderno, considere AddressSanitizer ou ferramentas estáticas para detectar cópias inseguras em tempo de compilação.

CVE-2025-6113HIGHTenda FH1203 AdvSetLanip fromadvsetlanip buffer overflowEPSS 1.3%CVE-2025-6112HIGHTenda FH1205 AdvSetLanip fromadvsetlanip buffer overflowEPSS 1.3%CVE-2021-38687HIGHStack Overflow Vulnerability in Surveillance StationEPSS 1.3%CVE-1999-0038HIGHBuffer overflow in xlock program allows local users to execute commands as root.EPSS 1.3%CVE-2023-7222HIGHTotolink X2000R HTTP POST Request boa formTmultiAP buffer overflowEPSS 1.3%CVE-2022-48620CRITICALuev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number.EPSS 1.3%CVE-2026-0797HIGHGIMP ICO File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.3%CVE-2021-33972CRITICALBuffer Overflow vulnerability in Qihoo 360 Safe Browser v13.0.2170.0 allows attacker to escalate priveleges.EPSS 1.3%CVE-2025-8242HIGHTOTOLINK X15 HTTP POST Request formFilter buffer overflowEPSS 1.3%CVE-2024-9569HIGHD-Link DIR-619L B1 formEasySetPassword buffer overflowEPSS 1.3%CVE-2024-9568HIGHD-Link DIR-619L B1 formAdvNetwork buffer overflowEPSS 1.3%CVE-2024-9567HIGHD-Link DIR-619L B1 formAdvFirewall buffer overflowEPSS 1.3%CVE-2025-32105CRITICALA buffer overflow in the the Sangoma IMG2020 HTTP server through 2.3.9.6 allows an unauthenticated user to achieve remote code execution.EPSS 1.3%CVE-2024-24479HIGHA Buffer Overflow in Wireshark before 4.2.0 allows a remote attacker to cause a denial of service via the wsutil/to_str.c, and format_fractiEPSS 1.3%CVE-2025-68137HIGHEVerest's Integer Overflow and Signed to Unsigned conversion lead to either stack buffer overflow or infinite loopEPSS 1.3%CVE-2022-20889MEDIUMCisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service VulnerabilitiesEPSS 1.3%CVE-2022-24016CRITICALA buffer overflow vulnerability exists in the GetValue functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted configuEPSS 1.3%CVE-2022-24012CRITICALA buffer overflow vulnerability exists in the GetValue functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted configuEPSS 1.3%CVE-2022-24022CRITICALA buffer overflow vulnerability exists in the GetValue functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted configuEPSS 1.3%CVE-2022-24024CRITICALA buffer overflow vulnerability exists in the GetValue functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted configuEPSS 1.3%