Falhas do tipo CWE-121

4.114 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-2025-9299HIGHTenda M3 getMasterPassengerAnalyseData formGetMasterPassengerAnalyseData stack-based overflowEPSS 5.5%CVE-2019-17145HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.6.0.25114. User interacEPSS 5.5%CVE-2022-2025CRITICALGrandstream GSD3710 Stack-based Buffer OverflowEPSS 5.5%CVE-2018-10628—AVEVA InTouch 2014 R2 SP1 and prior, InTouch 2017, InTouch 2017 Update 1, and InTouch 2017 Update 2 allow an unauthenticated user to send a EPSS 5.4%CVE-2014-9200—Schneider Electric Device Type Managers (DTMs) Stack-based Buffer OverflowEPSS 5.4%CVE-2021-39847HIGHXMP Toolkit SDK Stack-based Buffer Overflow Could Lead To Arbitrary Code ExecutionEPSS 5.4%CVE-2015-1006—A vulnerable file in Opto 22 PAC Project Professional versions prior to R9.4006, PAC Project Basic versions prior to R9.4006, PAC Display BaEPSS 5.3%CVE-2025-9392HIGHLinksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 qosClassifier stack-based overflowEPSS 5.3%CVE-2024-11237HIGHTP-Link VN020 F3v(T) DHCP DISCOVER Packet Parser TP-Thumper stack-based overflowEPSS 5.3%CVE-2024-36729MEDIUMTRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated usEPSS 5.3%CVE-2017-12194—A flaw was found in the way spice-client processed certain messages sent from the server. An attacker, having control of malicious spice-serEPSS 5.2%CVE-2019-3922—The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 is vulnerable to a stack buffer overflow via crafted HTTP POST reEPSS 5.2%CVE-2014-9189—Multiple stack-based buffer overflow vulnerabilities were found in Honeywell Experion PKS all versions prior to R400.6, all versions prior tEPSS 5.2%CVE-2018-17910—WebAccess Versions 8.3.2 and prior. The application fails to properly validate the length of user-supplied data, causing a buffer overflow cEPSS 5.2%CVE-2017-3223—Dahua IP camera products using firmware versions prior to V2.400.0000.14.R.20170713 include a version of the Sonia web interface that may be vulnerable to a stack buffer overflowEPSS 5.2%CVE-2024-36728HIGHTRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated usEPSS 5.2%CVE-2012-10021CRITICALD-Link DIR-605L Captcha Handling Buffer OverflowEPSS 5.1%CVE-2025-28144MEDIUMEdimax AC1200 Wave 2 Dual-Band Gigabit Router BR-6478AC V3 1.0.15 was discovered to contain a stack overflow vlunerability via peerPin paramEPSS 5.1%CVE-2025-45867MEDIUMTOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the static_dns1 parameter in the formIpv6Setup interfaEPSS 5.1%CVE-2025-9363HIGHLinksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 portTriggerManageRule stack-based overflowEPSS 5.0%