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-2025-4462HIGHTOTOLINK N150RT formWsc buffer overflowEPSS 2.0%CVE-2021-46598HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2018-0346—A vulnerability in the Zero Touch Provisioning service of the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to causeEPSS 2.0%CVE-2021-43083—Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server responseEPSS 2.0%CVE-2021-34934HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction EPSS 2.0%CVE-2020-3194HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilityEPSS 2.0%CVE-2021-20276—A flaw was found in privoxy before 3.0.32. Invalid memory access with an invalid pattern passed to pcre_compile() may lead to denial of servEPSS 2.0%CVE-2021-20275—A flaw was found in privoxy before 3.0.32. A invalid read of size two may occur in chunked_body_is_complete() leading to denial of service.EPSS 2.0%CVE-2019-13942—A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versiEPSS 1.9%CVE-2021-3404—In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) dEPSS 1.9%CVE-2020-13561CRITICALAn out-of-bounds write vulnerability exists in the TIFF parser of Accusoft ImageGear 19.8. A specially crafted malformed file can lead to coEPSS 1.9%CVE-2025-0349HIGHTenda AC6 GetParentControlInfo stack-based overflowEPSS 1.9%CVE-2021-1274HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.9%CVE-2021-1273HIGHCisco SD-WAN Denial of Service VulnerabilitiesEPSS 1.9%CVE-2021-34306—A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The BMP_Loader.dll libEPSS 1.9%CVE-2021-3571—A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent EPSS 1.9%CVE-2024-23616CRITICALSymantec Server Management Suite Buffer OverflowEPSS 1.9%CVE-2024-23615CRITICALSymantec Messaging Gateway Buffer OverflowEPSS 1.9%CVE-2026-107406CRITICALMemory overflow vulnerability leading to Remote Code Execution or Denial of ServiceEPSS 1.9%CVE-2024-12344MEDIUMTP-Link VN020 F3v(T) FTP USER Command memory corruptionEPSS 1.9%