Falhas do tipo CWE-119

3.266 resultados

Corrupção de Memória Genérica

É uma categoria abrangente que descreve qualquer acesso indevido à memória — escrever fora dos limites de um buffer, ler dados não inicializados, ou manipular ponteiros inválidos. O risco é grave: permite execução de código arbitrário, travamento da aplicação ou exposição de dados sensíveis.

Exemplo

Um programa em C copia dados do usuário para um array sem validar o tamanho (strcpy em vez de strncpy). Um atacante envia uma string maior que o buffer, sobrescrevendo dados adjacentes ou até o endereço de retorno da função, permitindo injetar código malicioso.

Como mitigar

Use funções seguras (strncpy, snprintf, memmove com limites explícitos), valide e sanitize toda entrada antes de copiar, ative canários de pilha e ASLR no SO, e aplique sanitizadores (ASAN, UBSAN) durante desenvolvimento e testes. Em linguagens seguras (Rust, Python) o problema é praticamente eliminado.

CVE-2021-43316—A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le64().EPSS 0.8%CVE-2021-43314—A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). ThEPSS 0.8%CVE-2021-43312—A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggEPSS 0.8%CVE-2021-43313—A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggEPSS 0.8%CVE-2021-43311—A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). TheEPSS 0.8%CVE-2025-7527HIGHTenda FH1202 AdvSetWan fromAdvSetWan stack-based overflowEPSS 0.8%CVE-2023-0637MEDIUMTRENDnet TEW-811DRU Web Management Interface wan.asp memory corruptionEPSS 0.8%CVE-2025-7528HIGHTenda FH1202 GstDhcpSetSer fromGstDhcpSetSer stack-based overflowEPSS 0.8%CVE-2025-7530HIGHTenda FH1202 PPTPDClient fromPptpUserAdd stack-based overflowEPSS 0.8%CVE-2025-7529HIGHTenda FH1202 Natlimit fromNatlimit stack-based overflowEPSS 0.8%CVE-2025-7468HIGHTenda FH1201 HTTP POST Request fromSafeUrlFilter buffer overflowEPSS 0.8%CVE-2025-8060HIGHTenda AC23 httpd setMacFilterCfg sub_46C940 stack-based overflowEPSS 0.8%CVE-2026-5350HIGHTrendnet TEW-657BRM setup.cgi update_pcdb stack-based overflowEPSS 0.8%CVE-2025-8019HIGHShenzhen Libituo Technology LBT-T300-T310 appy.cgi sub_40B6F0 buffer overflowEPSS 0.8%CVE-2025-7465HIGHTenda FH1201 HTTP POST Request fromRouteStatic buffer overflowEPSS 0.8%CVE-2026-7097HIGHTenda F456 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflowEPSS 0.8%CVE-2022-24661—A vulnerability has been identified in Simcenter STAR-CCM+ Viewer (All versions < V2022.1). The starview+.exe contains a memory corruption vEPSS 0.8%CVE-2025-4834HIGHTOTOLINK A702R/A3002R/A3002RU HTTP POST Request formSetLg buffer overflowEPSS 0.8%CVE-2025-4832HIGHTOTOLINK A702R/A3002R/A3002RU HTTP POST Request formDosCfg buffer overflowEPSS 0.8%CVE-2025-4833HIGHTOTOLINK A702R/A3002R/A3002RU HTTP POST Request formNtp buffer overflowEPSS 0.8%