Fallos del tipo CWE-119

3265 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-2025-3989HIGHTOTOLINK N150RT formStaticDHCP buffer overflowEPSS 1.0%CVE-2025-3991HIGHTOTOLINK N150RT formWdsEncrypt buffer overflowEPSS 1.0%CVE-2025-3990HIGHTOTOLINK N150RT formVlan buffer overflowEPSS 1.0%CVE-2025-11444HIGHTOTOLINK N600R HTTP Request cstecgi.cgi setWiFiBasicConfig buffer overflowEPSS 1.0%CVE-2021-32493A flaw was found in djvulibre-3.5.28 and earlier. A heap buffer overflow in function DJVU::GBitmap::decode() via crafted djvu file may lead EPSS 1.0%CVE-2026-96257CRITICALFast FAC1203R Gigabit Edition Device Discovery Service copy_msg_element stack-based overflowEPSS 1.0%CVE-2025-8833HIGHLinksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 langSwitchBack stack-based overflowEPSS 1.0%CVE-2025-8817HIGHLinksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 setLan stack-based overflowEPSS 1.0%CVE-2025-8245HIGHTOTOLINK X15 HTTP POST Request formMultiAPVLAN buffer overflowEPSS 1.0%CVE-2025-4114HIGHNetgear JWNR2000v2 check_language_file buffer overflowEPSS 1.0%CVE-2025-11525HIGHTenda AC7 SetUpnpCfg stack-based overflowEPSS 1.0%CVE-2025-10838HIGHTenda AC21 WifiExtraSet sub_45BB10 buffer overflowEPSS 1.0%CVE-2021-3559A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and drEPSS 1.0%CVE-2025-4810HIGHTenda AC7 SetRebootTimer formSetRebootTimer stack-based overflowEPSS 1.0%CVE-2025-43272MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, visionOS 26, EPSS 1.0%CVE-2020-15205CRITICALData leak in TensorflowEPSS 1.0%CVE-2025-11524HIGHTenda AC7 SetDDNSCfg stack-based overflowEPSS 1.0%CVE-2025-8243HIGHTOTOLINK X15 HTTP POST Request formMapDel buffer overflowEPSS 1.0%CVE-2021-1503HIGHCisco Webex Network Recording Player and Webex Player Memory Corruption VulnerabilityEPSS 1.0%CVE-2021-1511HIGHCisco SD-WAN vEdge Software Buffer Overflow VulnerabilitiesEPSS 1.0%