Falhas do tipo CWE-119

3.244 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-2021-33481—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-2021-1510HIGHCisco SD-WAN vEdge Software Buffer Overflow VulnerabilitiesEPSS 1.2%CVE-2026-1329HIGHTenda AX1803 WifiGuestSet fromGetWifiGuestBasic stack-based overflowEPSS 1.2%CVE-2021-1509HIGHCisco SD-WAN vEdge Software Buffer Overflow VulnerabilitiesEPSS 1.2%CVE-2020-3310MEDIUMCisco Firepower Device Manager On-Box Software XML Parsing VulnerabilityEPSS 1.2%CVE-2025-6128HIGHTOTOLINK EX1200T HTTP POST Request formWirelessTbl buffer overflowEPSS 1.2%CVE-2024-11047HIGHD-Link DI-8003 upgrade_filter.asp upgrade_filter_asp stack-based overflowEPSS 1.2%CVE-2023-24585HIGHAn out-of-bounds write vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted networEPSS 1.2%CVE-2024-11048HIGHD-Link DI-8003 dbsrv.asp dbsrv_asp stack-based overflowEPSS 1.2%CVE-2025-6292HIGHD-Link DIR-825 HTTP POST Request sub_4091AC stack-based overflowEPSS 1.2%CVE-2025-6291HIGHD-Link DIR-825 HTTP POST Request do_file stack-based overflowEPSS 1.2%CVE-2025-5868HIGHRT-Thread lwp_syscall.c sys_thread_sigprocmask array indexEPSS 1.2%CVE-2025-31278HIGHThe issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS SeEPSS 1.2%CVE-2020-13497MEDIUMAn exploitable vulnerability exists in the way Pixar OpenUSD 20.05 handles parses certain encoded types. A specially crafted malformed file EPSS 1.2%CVE-2023-45234HIGHBuffer Overflow in EDK II Network PackageEPSS 1.2%CVE-2021-22713HIGHA CWE-119:Improper restriction of operations within the bounds of a memory buffer vulnerability exists in PowerLogic ION8650, ION8800, ION76EPSS 1.2%CVE-2025-4343HIGHD-Link DIR-600L formEasySetupWizard buffer overflowEPSS 1.2%CVE-2025-1897HIGHTenda TX3 SetNetControlList buffer overflowEPSS 1.2%CVE-2025-4342HIGHD-Link DIR-600L formEasySetupWizard3 buffer overflowEPSS 1.2%CVE-2025-6616HIGHD-Link DIR-619L formSetWAN_Wizard51 stack-based overflowEPSS 1.2%