Fallos del tipo CWE-119

3506 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-2020-10060HIGHUpdateHub Might Dereference An Uninitialized PointerEPSS 1.6%CVE-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-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-2020-11058LOWImproper Restriction of Operations within the Bounds of a Memory Buffer in FreeRDPEPSS 1.5%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-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-2025-5912HIGHD-Link DIR-632 HTTP POST Request do_file stack-based overflowEPSS 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%