Falhas do tipo CWE-119

3.264 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-2025-9525HIGHLinksys E1700 setWan stack-based overflowEPSS 1.4%CVE-2025-9526HIGHLinksys E1700 setSysAdm stack-based overflowEPSS 1.4%CVE-2025-4146HIGHNetgear EX6200 sub_41940 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-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 1.4%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%CVE-2024-22391HIGHA heap-based buffer overflow vulnerability exists in the LookupTable::SetLUT functionality of Mathieu Malaterre Grassroot DICOM 3.0.23. A spEPSS 1.4%CVE-2025-9481HIGHLinksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 setIpv6 stack-based overflowEPSS 1.4%CVE-2021-34781HIGHCisco Firepower Threat Defense Software SSH Connections Denial of Service VulnerabilityEPSS 1.4%CVE-2021-1402HIGHCisco Firepower Threat Defense Software SSL Decryption Policy Denial of Service VulnerabilityEPSS 1.4%CVE-2021-1279HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.4%CVE-2021-1241HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.4%CVE-2021-1273HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.4%CVE-2024-45169CRITICALAn issue was discovered in UCI IDOL 2 (aka uciIDOL or IDOL2) through 2.12. Due to improper input validation, improper deserialization, and iEPSS 1.4%CVE-2026-7069HIGHD-Link DIR-825 miniupnpd upnpsoap.c AddPortMapping buffer overflowEPSS 1.4%CVE-2025-5912HIGHD-Link DIR-632 HTTP POST Request do_file stack-based overflowEPSS 1.4%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 1.4%CVE-2025-5909HIGHTOTOLINK EX1200T HTTP POST Request formReflashClientTbl buffer overflowEPSS 1.4%