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-2026-43810CRITICALThe issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOEPSS 0.8%CVE-2024-27851HIGHThe issue was addressed with improved bounds checks. This issue is fixed in Safari 17.5, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 1EPSS 0.8%CVE-2025-7597HIGHTenda AX1803 setMacFilterCfg formSetMacFilterCfg stack-based overflowEPSS 0.8%CVE-2025-7416HIGHTenda O3V2 httpd setSysTimeInfo fromSysToolTime stack-based overflowEPSS 0.8%CVE-2025-7596HIGHTenda FH1205 WifiExtraSet formWifiExtraSet stack-based overflowEPSS 0.8%CVE-2025-7418HIGHTenda O3V2 httpd setPing fromPingResultGet stack-based overflowEPSS 0.8%CVE-2025-7419HIGHTenda O3V2 httpd setRateTest fromSpeedTestSet stack-based overflowEPSS 0.8%CVE-2025-7417HIGHTenda O3V2 httpd setPingInfo fromNetToolGet stack-based overflowEPSS 0.8%CVE-2025-7422HIGHTenda O3V2 httpd setNetworkService setAutoReboot stack-based overflowEPSS 0.8%CVE-2025-7550HIGHTenda FH1201 GstDhcpSetSer fromGstDhcpSetSer stack-based overflowEPSS 0.8%CVE-2025-7421HIGHTenda O3V2 httpd operateMacFilter fromMacFilterModify stack-based overflowEPSS 0.8%CVE-2025-7598HIGHTenda AX1803 setWifiFilterCfg formSetWifiMacFilterCfg stack-based overflowEPSS 0.8%CVE-2025-7420HIGHTenda O3V2 httpd setWrlBasicInfo formWifiBasicSet stack-based overflowEPSS 0.8%CVE-2025-7423HIGHTenda O3V2 httpd setWrlFilterList formWifiMacFilterSet stack-based overflowEPSS 0.8%CVE-2025-7460HIGHTOTOLINK T6 HTTP POST Request cstecgi.cgi setWiFiAclRules buffer overflowEPSS 0.8%CVE-2025-7548HIGHTenda FH1201 SafeEmailFilter formSafeEmailFilter stack-based overflowEPSS 0.8%CVE-2025-7549HIGHTenda FH1201 L7Prot frmL7ProtForm stack-based overflowEPSS 0.8%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-2021-43315—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-2021-43317—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%