Fallos del tipo CWE-119

3510 resultados

Corrupção de memória genérica

Fraqueza genérica que descreve quando software escreve dados fora dos limites esperados de um buffer ou estrutura de memória, sobrescrevendo dados adjacentes. Permite ao atacante corromper dados críticos, executar código arbitrário ou derrubar a aplicação.

Ejemplo

Um programa C que copia uma string do usuário para um array fixo sem validar comprimento: strcpy(buffer, user_input) em um buffer de 64 bytes, quando o input tem 200 caracteres. Os dados transbordados sobrescrevem variáveis, ponteiros ou endereços de retorno na pilha.

Cómo mitigar

Use funções seguras de cópia (strncpy, strlcpy, memcpy com tamanho validado), implemente validação de entrada e comprimento antes de qualquer operação de escrita em buffer, e ative proteções de compilador como stack canaries e ASLR. Em linguagens modernas (Rust, Go), o gerenciamento automático de memória elimina essa classe de bugs.

CVE-2025-7531HIGHTenda FH1202 PPTPUserSetting fromPptpUserSetting stack-based overflowEPSS 1.2%CVE-2026-4184CRITICALD-Link DIR-816 goahead form2Wl5BasicSetup.cgi stack-based overflowEPSS 1.2%CVE-2025-8949HIGHD-Link DIR-825 httpd ping_response.cgi get_ping_app_stat stack-based overflowEPSS 1.2%CVE-2026-4181CRITICALD-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflowEPSS 1.2%CVE-2025-8131HIGHTenda AC20 SetStaticRouteCfg stack-based overflowEPSS 1.2%CVE-2025-8137HIGHTOTOLINK A702R HTTP POST Request formIpQoS buffer overflowEPSS 1.2%CVE-2025-8139HIGHTOTOLINK A702R HTTP POST Request formPortFw buffer overflowEPSS 1.2%CVE-2025-7463HIGHTenda FH1201 HTTP POST Request AdvSetWrlsafeset formWrlsafeset buffer overflowEPSS 1.2%CVE-2026-4183CRITICALD-Link DIR-816 goahead form2WlanBasicSetup.cgi stack-based overflowEPSS 1.2%CVE-2025-4496HIGHTOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflowEPSS 1.2%CVE-2025-8243HIGHTOTOLINK X15 HTTP POST Request formMapDel buffer overflowEPSS 1.2%CVE-2020-35521—A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denialEPSS 1.2%CVE-2023-45235HIGHBuffer Overflow in EDK II Network PackageEPSS 1.2%CVE-2021-33481—A stack-based buffer overflow vulnerability was discovered in gocr through 0.53-20200802 in try_to_divide_boxes() in pgm2asc.c.EPSS 1.2%CVE-2025-4140HIGHNetgear EX6120 sub_30394 buffer overflowEPSS 1.2%CVE-2025-4145HIGHNetgear EX6200 sub_3D0BC buffer overflowEPSS 1.2%CVE-2021-33479—A stack-based buffer overflow vulnerability was discovered in gocr through 0.53-20200802 in measure_pitch() in pgm2asc.c.EPSS 1.2%CVE-2025-4142HIGHNetgear EX6200 sub_3C8EC buffer overflowEPSS 1.2%CVE-2025-6367HIGHD-Link DIR-619L formSetDomainFilter stack-based overflowEPSS 1.2%CVE-2025-6372HIGHD-Link DIR-619L formSetWizard1 stack-based overflowEPSS 1.2%