Fallos del tipo CWE-787
5127 resultadosEscrita fora dos limites de memória
Ocorre quando um programa escreve dados em uma posição de memória fora do intervalo alocado para um buffer, array ou estrutura. O atacante aproveita para sobrescrever dados adjacentes (variáveis, ponteiros, pilha de retorno), alterando o comportamento da aplicação ou assumindo controle total do sistema.
Ejemplo
Um programa lê 256 bytes de entrada do usuário e copia para um buffer de 64 bytes sem validação. O atacante envia 300 bytes, que transbordam o buffer e sobrescrevem o endereço de retorno na pilha, permitindo execução de código arbitrário.
Cómo mitigar
Sempre validar tamanho de entrada contra o limite do buffer antes de copiar (usar strncpy, snprintf em vez de strcpy, sprintf). Em linguagens modernas, usar estruturas bounds-checked (Rust, C# arrays) ou linters que detectem padrões perigosos.
CVE-2021-30883HIGHA memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 1EPSS 14.7%KEVCVE-2006-2362HIGHBuffer overflow in getsym in tekhex.c in libbfd in Free Software Foundation GNU Binutils before 20060423, as used by GNU strings, allows conEPSS 14.5%CVE-2022-43604CRITICALAn out-of-bounds write vulnerability exists in the GetAttributeList attribute_count_request functionality of EIP Stack Group OpENer developmEPSS 14.4%CVE-2022-43605CRITICALAn out-of-bounds write vulnerability exists in the SetAttributeList attribute_count_request functionality of EIP Stack Group OpENer developmEPSS 14.4%CVE-2023-40481HIGH7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 13.9%CVE-2022-40855CRITICALTenda W20E router V15.11.0.6 contains a stack overflow in the function formSetPortMapping with post request 'goform/setPortMapping/'. This vEPSS 13.8%CVE-2024-2173MEDIUMOut of bounds memory access in V8 in Google Chrome prior to 122.0.6261.111 allowed a remote attacker to perform out of bounds memory access EPSS 13.7%CVE-2025-0242MEDIUMMemory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6EPSS 13.1%CVE-2023-51092HIGHTenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function upgrade.EPSS 12.9%CVE-2022-22675HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in tvOS 15.5, watchOS 8.6, macOS Big Sur 11.6.EPSS 12.5%KEVCVE-2021-45068HIGHAdobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 12.3%CVE-2022-22587CRITICALA memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 15.3 and iPadOS 15.3, macOS Big Sur 11.6.EPSS 11.6%KEVCVE-2022-28236HIGHAdobe Acrobat Reader DC Annotation Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 11.6%CVE-2023-46257CRITICALAn attacker sending specially crafted data packets to the Mobile Device Server can cause memory corruption which could result to a Denial ofEPSS 11.3%CVE-2023-25235HIGHTenda AC500 V2.0.1.9(1307) is vulnerable to Buffer Overflow in function formOneSsidCfgSet via parameter ssid.EPSS 11.1%CVE-2020-8878HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.916. User interacEPSS 11.1%CVE-2024-4761HIGHOut of bounds write in V8 in Google Chrome prior to 124.0.6367.207 allowed a remote attacker to perform an out of bounds memory write via a EPSS 11.0%KEVCVE-2024-44236MEDIUMAn out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.1, macOS Sonoma 14.7.1, mEPSS 11.0%CVE-2022-45957HIGHZTE ZXHN-H108NS router with firmware version H108NSV1.0.7u_ZRD_GR2_A68 is vulnerable to remote stack buffer overflow.EPSS 10.6%CVE-2024-42948HIGHTenda FH1201 v1.2.0.14 (408) was discovered to contain a stack overflow via the delno parameter in the fromPptpUserSetting function. This vuEPSS 10.6%