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-2021-3942CRITICALCertain HP Print products and Digital Sending products may be vulnerable to potential remote code execution and buffer overflow with use of EPSS 1.6%CVE-2020-10060HIGHUpdateHub Might Dereference An Uninitialized PointerEPSS 1.6%CVE-2019-8720HIGHA vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code eEPSS 1.6%KEVCVE-2021-31495HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User inEPSS 1.6%CVE-2025-9527HIGHLinksys E1700 QoSSetup stack-based overflowEPSS 1.5%CVE-2021-31883HIGHA vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions EPSS 1.5%CVE-2025-5912HIGHD-Link DIR-632 HTTP POST Request do_file stack-based overflowEPSS 1.5%CVE-2021-31882MEDIUMA vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions EPSS 1.5%CVE-2025-8160HIGHTenda AC20 httpd SetSysTimeCfg buffer overflowEPSS 1.5%CVE-2025-4146HIGHNetgear EX6200 sub_41940 buffer overflowEPSS 1.5%CVE-2025-5215HIGHD-Link DCS-5020L ptdc.cgi websReadEvent stack-based overflowEPSS 1.5%CVE-2026-7853CRITICALD-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflowEPSS 1.5%CVE-2025-7084HIGHBelkin F9K1122 webs formWpsStart stack-based overflowEPSS 1.5%CVE-2021-31493HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User inEPSS 1.5%CVE-2025-5909HIGHTOTOLINK EX1200T HTTP POST Request formReflashClientTbl buffer overflowEPSS 1.5%CVE-2019-1926HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesEPSS 1.5%CVE-2021-3826—Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of servicEPSS 1.5%CVE-2024-23213HIGHThe issue was addressed with improved memory handling. This issue is fixed in Safari 17.3, iOS 16.7.5 and iPadOS 16.7.5, iOS 17.3 and iPadOSEPSS 1.5%CVE-2018-0292—A vulnerability in the Internet Group Management Protocol (IGMP) Snooping feature of Cisco NX-OS Software could allow an unauthenticated, adEPSS 1.5%CVE-2025-9526HIGHLinksys E1700 setSysAdm stack-based overflowEPSS 1.5%