Fallos del tipo CWE-119

3263 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-2026-0837HIGHUTT 进取 520W formFireWall strcpy buffer overflowEPSS 3.9%CVE-2026-0841HIGHUTT 进取 520W formPictureUrl strcpy buffer overflowEPSS 3.9%CVE-2026-0838HIGHUTT 进取 520W ConfigWirelessBase strcpy buffer overflowEPSS 3.9%CVE-2022-32839CRITICALThe issue was addressed with improved bounds checks. This issue is fixed in macOS Monterey 12.5, macOS Big Sur 11.6.8, Security Update 2022-EPSS 3.8%CVE-2025-10385HIGHMercury KM08-708H GiGA WiFi Wave2 mcr_setSysAdm sub_450B2C buffer overflowEPSS 3.8%CVE-2026-11498HIGHTenda HG7HG9/HG10 Web Management voip_other_set asp_voip_OtherSet stack-based overflowEPSS 3.8%CVE-2022-3964MEDIUMffmpeg QuickTime RPZA Video Encoder rpzaenc.c out-of-boundsEPSS 3.8%CVE-2025-11120HIGHTenda AC8 SetServerConfig formSetServerConfig buffer overflowEPSS 3.7%CVE-2026-4567CRITICALTenda A15 UploadCfg stack-based overflowEPSS 3.7%CVE-2022-26763HIGHAn out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in tvOS 15.5, iOS 15.5 and iPadOS 15.5, SecurEPSS 3.7%CVE-2026-1420HIGHTenda AC23 WifiExtraSet buffer overflowEPSS 3.7%CVE-2025-13305HIGHD-Link DWR-M920/DWR-M921/DWR-M960/DIR-822K/DIR-825M formTracerouteDiagnosticRun buffer overflowEPSS 3.6%CVE-2026-2961HIGHD-Link DWR-M960 VPN Configuration Endpoint formVpnConfigSetup sub_4196C4 stack-based overflowEPSS 3.5%CVE-2020-17426HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interacEPSS 3.5%CVE-2026-2962HIGHD-Link DWR-M960 Scheduled Reboot Configuration Endpoint formDateReboot sub_460F30 stack-based overflowEPSS 3.5%CVE-2022-32847CRITICALThis issue was addressed with improved checks. This issue is fixed in iOS 15.6 and iPadOS 15.6, macOS Big Sur 11.6.8, watchOS 8.7, tvOS 15.6EPSS 3.5%CVE-2025-6436HIGHMemory safety bugs fixed in Firefox 140 and Thunderbird 140EPSS 3.5%CVE-2021-3657A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or comprEPSS 3.5%CVE-2025-1876MEDIUMD-Link DAP-1562 HTTP Header http_request_parse stack-based overflowEPSS 3.5%CVE-2018-0175HIGHFormat String vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOEPSS 3.5%KEV