Falhas do tipo CWE-119

3.506 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-2025-43429MEDIUMA buffer overflow was addressed with improved bounds checking. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 anEPSS 1.5%CVE-2025-5619HIGHTenda CH22 addUserName formaddUserName stack-based overflowEPSS 1.4%CVE-2017-2575—A vulnerability was found while fuzzing libbpg 0.9.7. It is a NULL pointer dereference issue due to missing check of the return value of funEPSS 1.4%CVE-2025-5969HIGHD-Link DIR-632 HTTP POST Request biurl_grou FUN_00425fd8 stack-based overflowEPSS 1.4%CVE-2025-8244HIGHTOTOLINK X15 HTTP POST Request formMapDelDevice buffer overflowEPSS 1.4%CVE-2019-1641HIGHCisco Webex Network Recording Player Arbitrary Code Execution VulnerabilitiesEPSS 1.4%CVE-2022-3667HIGHAxiomatic Bento4 mp42aac Ap4ByteStream.cpp WritePartial heap-based overflowEPSS 1.4%CVE-2021-21833CRITICALAn improper array index validation vulnerability exists in the TIF IP_planar_raster_unpack functionality of Accusoft ImageGear 19.9. A speciEPSS 1.4%CVE-2025-4809HIGHTenda AC7 setMacFilterCfg fromSafeSetMacFilter stack-based overflowEPSS 1.4%CVE-2019-1214HIGHAn elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory, aEPSS 1.4%KEVCVE-2024-8573HIGHTOTOLINK AC1200 T8/AC1200 T10 cstecgi.cgi setParentalRules buffer overflowEPSS 1.4%CVE-2019-15284HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesEPSS 1.4%CVE-2019-15286HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesEPSS 1.4%CVE-2021-1279HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.4%CVE-2021-34781HIGHCisco Firepower Threat Defense Software SSH Connections Denial of Service VulnerabilityEPSS 1.4%CVE-2021-1241HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.4%CVE-2023-35002CRITICALA heap-based buffer overflow vulnerability exists in the pictwread functionality of Accusoft ImageGear 20.1. A specially crafted malformed fEPSS 1.4%CVE-2021-1402HIGHCisco Firepower Threat Defense Software SSL Decryption Policy Denial of Service VulnerabilityEPSS 1.4%CVE-1999-0069HIGHSolaris ufsrestore buffer overflow.EPSS 1.4%CVE-2017-6720—A vulnerability in the Secure Shell (SSH) subsystem of Cisco Small Business Managed Switches software could allow an authenticated, remote aEPSS 1.4%