Fallos del tipo CWE-119

3510 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-2025-6334HIGHD-Link DIR-867 Query String strncpy stack-based overflowEPSS 1.0%CVE-2025-7434HIGHTenda FH451 POST Request addressNat fromAddressNat stack-based overflowEPSS 1.0%CVE-2025-7796HIGHTenda FH451 PPTPDClient fromPptpUserAdd stack-based overflowEPSS 1.0%CVE-2025-13191HIGHD-Link DIR-816L soap.cgi soapcgi_main stack-based overflowEPSS 1.0%CVE-2025-13189HIGHD-Link DIR-816L gena.cgi genacgi_main stack-based overflowEPSS 1.0%CVE-2021-3549—An out of bounds flaw was found in GNU binutils objdump utility version 2.36. An attacker could use this flaw and pass a large section to avEPSS 1.0%CVE-2021-38436HIGHFATEK Automation WinProladderEPSS 1.0%CVE-2021-38442HIGHFATEK Automation WinProladderEPSS 1.0%CVE-2022-47393MEDIUMCODESYS: Multiple products prone to improperly restricted memory operationsEPSS 1.0%CVE-2022-41175—Due to lack of proper memory management, when a victim opens a manipulated Enhanced Metafile (.emf, emf.x3d) file received from untrusted soEPSS 1.0%CVE-2021-3605—There's a flaw in OpenEXR's rleUncompress functionality in versions prior to 3.0.5. An attacker who is able to submit a crafted file to an aEPSS 1.0%CVE-2021-3746—A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The vulnerability is triggered by speciaEPSS 1.0%CVE-2025-15006CRITICALTenda WH450 HTTP Request CheckTools stack-based overflowEPSS 1.0%CVE-2020-36619MEDIUMmultimon-ng demod_flex.c add_ch format stringEPSS 1.0%CVE-2022-3534MEDIUMLinux Kernel libbpf btf_dump.c btf_dump_name_dups use after freeEPSS 1.0%CVE-2025-5865HIGHRT-Thread Parameter lwp_syscall.c sys_select memory corruptionEPSS 1.0%CVE-2025-7549HIGHTenda FH1201 L7Prot frmL7ProtForm stack-based overflowEPSS 1.0%CVE-2025-7422HIGHTenda O3V2 httpd setNetworkService setAutoReboot stack-based overflowEPSS 1.0%CVE-2025-43441MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOSEPSS 1.0%CVE-2025-7597HIGHTenda AX1803 setMacFilterCfg formSetMacFilterCfg stack-based overflowEPSS 1.0%