Weaknesses of type CWE-120

3,163 results

Estouro de buffer clássico

A aplicação copia dados para um buffer sem validar o tamanho, permitindo que um atacante sobrescreva memória adjacente, incluindo endereços de retorno ou ponteiros de função. Isso resulta na execução de código arbitrário com os privilégios da aplicação.

Example

Um programa lê uma entrada do usuário com gets() ou strcpy() sem limitar quantos bytes podem ser copiados. Um atacante fornece uma entrada maior que o buffer, sobrescrevendo a pilha e injetando código malicioso que será executado quando a função retornar.

How to mitigate

Use funções seguras que validam limites (strncpy, snprintf, fgets) e compile com proteções de pilha ativadas (-fstack-protector-all no GCC). Além disso, implemente validação de entrada no tamanho esperado e considere linguagens com gerenciamento automático de memória para novos projetos.

CVE-2022-41028HIGHSeveral stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210EPSS 2.4%CVE-2021-42785—Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59EPSS 2.3%CVE-2021-34829HIGHThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1330 1.13B01 BETA rouEPSS 2.3%CVE-2021-34828HIGHThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1330 1.13B01 BETA rouEPSS 2.3%CVE-2022-29246CRITICALPotential buffer overflow in function DFU upload in Azure RTOS USBXEPSS 2.3%CVE-2020-8215—A buffer overflow is present in canvas version <= 1.6.9, which could lead to a Denial of Service or execution of arbitrary code when it procEPSS 2.3%CVE-2016-9363HIGHAn issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions pEPSS 2.3%CVE-2020-10022CRITICALUpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size ArrayEPSS 2.3%CVE-2023-27585HIGHPJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior afEPSS 2.3%CVE-2023-41913CRITICALstrongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the intEPSS 2.3%CVE-2020-1654CRITICALJunos OS: SRX Series: processing a malformed HTTP message when ICAP redirect service is enabled may can lead to flowd process crash or remote code executionEPSS 2.2%CVE-2025-4348HIGHD-Link DIR-600L formSetWanL2TP buffer overflowEPSS 2.2%CVE-2022-41029HIGHSeveral stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210EPSS 2.2%CVE-2022-41027HIGHSeveral stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210EPSS 2.2%CVE-2021-31895HIGHA vulnerability has been identified in RUGGEDCOM i800 (All versions < V4.3.7), RUGGEDCOM i801 (All versions < V4.3.7), RUGGEDCOM i802 (All vEPSS 2.2%CVE-2020-25185—The affected product is vulnerable to five post-authentication buffer overflows, which may allow a logged in user to remotely execute arbitrEPSS 2.2%CVE-2024-9909HIGHD-Link DIR-619L B1 formSetMuti buffer overflowEPSS 2.2%CVE-2024-39370CRITICALAn arbitrary code execution vulnerability exists in the adm.cgi set_MeshAp() functionality of Wavlink AC3000 M33A8.V5030.210505. A speciallyEPSS 2.2%CVE-2022-24793HIGHPotential heap buffer overflow when parsing DNS packets in PJSIPEPSS 2.2%CVE-2021-33719—A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variantsEPSS 2.2%