Fallos del tipo CWE-119

3268 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-2026-76988MEDIUMliftoff-sr CIPster ForwardOpen cipconnectionmanager.cc forward_open out-of-boundsEPSS 0.7%CVE-2026-86509CRITICALD-Link DIR-895L udhcpcd serverpacket.c sendACK stack-based overflowEPSS 0.7%CVE-2025-1899HIGHTenda TX3 setPptpUserList buffer overflowEPSS 0.7%CVE-2026-43682CRITICALThe issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. AEPSS 0.7%CVE-2026-64696CRITICALThe issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. AEPSS 0.7%CVE-2026-1156HIGHTotolink LR350 cstecgi.cgi setWiFiBasicCfg buffer overflowEPSS 0.7%CVE-2026-1158HIGHTotolink LR350 POST Request cstecgi.cgi setWizardCfg buffer overflowEPSS 0.7%CVE-2026-27890HIGHFirebird has Pre-Auth DOS when Processing Out of Order CNCT_specific_data SegmentsEPSS 0.7%CVE-2025-1181LOWGNU Binutils ld elflink.c _bfd_elf_gc_mark_rsec memory corruptionEPSS 0.7%CVE-2026-74990CRITICALInternally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbird 154EPSS 0.7%CVE-2026-74987CRITICALInternally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbird 154EPSS 0.7%CVE-2025-24189HIGHThe issue was addressed with improved checks. This issue is fixed in Safari 18.3, iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3, tvOS 18.3, vEPSS 0.7%CVE-2026-2068HIGHUTT 进取 520W formSyslogConf strcpy buffer overflowEPSS 0.7%CVE-2022-43581HIGHIBM Content Navigator code executionEPSS 0.7%CVE-2026-1637HIGHTenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflowEPSS 0.7%CVE-2023-5394HIGHServer receiving a malformed message that where the GCL message hostname may be too large which may cause a stack overflow; resulting in posEPSS 0.7%CVE-2026-90688HIGHTenda W20E HTTP formIPMacBindAdd stack-based overflowEPSS 0.7%CVE-2025-5295MEDIUMFreeFloat FTP Server PORT Command buffer overflowEPSS 0.7%CVE-2025-4162MEDIUMPCMan FTP Server ASCII Command buffer overflowEPSS 0.7%CVE-2025-5110MEDIUMFreeFloat FTP Server VERBOSE Command buffer overflowEPSS 0.7%