Weaknesses of type CWE-787

5,154 results

Escrita fora dos limites da memória

Ocorre quando o código escreve dados em um endereço de memória fora do intervalo alocado para uma estrutura (array, buffer, objeto). O programa não valida o tamanho ou índice antes de escrever, permitindo sobrescrever memória adjacente — causando corrupção de dados, queda da aplicação ou execução arbitrária de código.

Example

Um formulário web que copia o valor de um campo do usuário para um buffer de 64 bytes sem verificar o comprimento: se o atacante enviar 200 caracteres, a escrita invade a memória vizinha e pode sobrescrever um ponteiro de função ou variável crítica.

How to mitigate

Sempre validar tamanhos de entrada antes de copiar (usar `strncpy` em vez de `strcpy`, ou bibliotecas seguras como `bounds-checking`); usar linguagens com verificação automática de limites (Java, Rust); aplicar testes de fuzzing e análise estática de código para detectar escritas desprotegidas.

CVE-2026-78011HIGHFireware OS Integer Underflow in Iked Allows Unauthenticated Denial of Service (DoS)EPSS 0.5%CVE-2022-23561HIGHOut of bounds write in TFLiteEPSS 0.5%CVE-2026-2940MEDIUMZaher1307 tiny_web_server URL tiny.c out-of-bounds writeEPSS 0.5%CVE-2024-24956HIGHSeveral out-of-bounds write vulnerabilities exist in the Programming Software Connection FileSystem API functionality of AutomationDirect P3EPSS 0.5%CVE-2018-16847HIGHAn OOB heap buffer r/w access issue was found in the NVM Express Controller emulation in QEMU. It could occur in nvme_cmb_ops routines in nvEPSS 0.5%CVE-2024-24958HIGHSeveral out-of-bounds write vulnerabilities exist in the Programming Software Connection FileSystem API functionality of AutomationDirect P3EPSS 0.5%CVE-2026-78010HIGHFireware OS Stack-Based Buffer Overflow in iked Allows Unauthenticated Denial of ServiceEPSS 0.5%CVE-2024-24954HIGHSeveral out-of-bounds write vulnerabilities exist in the Programming Software Connection FileSystem API functionality of AutomationDirect P3EPSS 0.5%CVE-2024-24959HIGHSeveral out-of-bounds write vulnerabilities exist in the Programming Software Connection FileSystem API functionality of AutomationDirect P3EPSS 0.5%CVE-2025-20681CRITICALIn wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilegEPSS 0.5%CVE-2025-42877HIGHMemory Corruption vulnerability in SAP Web Dispatcher, Internet Communication Manager and SAP Content ServerEPSS 0.5%CVE-2026-70456HIGHrsync 3.0.1 < 3.5.0 Heap Out-of-Bounds Write via read_args()EPSS 0.5%CVE-2026-20657MEDIUMA buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOEPSS 0.5%CVE-2026-8092HIGHMemory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2EPSS 0.5%CVE-2026-70458HIGHrsync 3.0.0 < 3.5.0 Out-of-Bounds Write via FLAG_HLINKED HandlingEPSS 0.5%CVE-2025-20684CRITICALIn wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilegEPSS 0.5%CVE-2026-82071HIGHInsufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to Out-of-Bounds WriteEPSS 0.5%CVE-2022-41168—Due to lack of proper memory management, when a victim opens a manipulated CATIA5 Part (.catpart, CatiaTranslator.exe) file received from unEPSS 0.5%CVE-2022-41177—Due to lack of proper memory management, when a victim opens a manipulated Iges Part and Assembly (.igs, .iges, CoreCadTranslator.exe) file EPSS 0.5%CVE-2022-41172—Due to lack of proper memory management, when a victim opens a manipulated AutoCAD (.dxf, TeighaTranslator.exe) file received from untrustedEPSS 0.5%