Weaknesses of type CWE-787

5,843 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-2022-35029MEDIUMOTFCC commit 617837b was discovered to contain a segmentation violation via /release-x64/otfccdump+0x6babea.EPSS 1.0%CVE-2022-35025MEDIUMOTFCC commit 617837b was discovered to contain a segmentation violation via /release-x64/otfccdump+0x5266a8.EPSS 1.0%CVE-2024-22916CRITICALIn D-LINK Go-RT-AC750 v101b03, the sprintf function in the sub_40E700 function within the cgibin is susceptible to stack overflow.EPSS 1.0%CVE-2023-24819CRITICALRIOT-OS vulnerable to Buffer Overflow during IPHC receiveEPSS 1.0%CVE-2023-24823CRITICALRIOT-OS vulnerable to Packet Type Confusion during IPHC sendEPSS 1.0%CVE-2021-33684MEDIUMSAP NetWeaver AS ABAP and ABAP Platform, versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64NUCEPSS 1.0%CVE-2019-25614CRITICALFree Float FTP 1.0 STOR Command Remote Buffer OverflowEPSS 1.0%CVE-2023-27217CRITICALA stack-based buffer overflow in the ChangeFriendlyName() function of Belkin Smart Outlet V2 F7c063 firmware_2.00.11420.OWRT.PVT_SNSV2 allowEPSS 1.0%CVE-2022-40106HIGHTenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the set_local_time function. This vulnerability allows attackers to EPSS 1.0%CVE-2024-20018CRITICALIn wlan driver, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege wEPSS 1.0%CVE-2022-42081HIGHTenda AC1206 US_AC1206V1.0RTL_V15.03.06.23_multi_TD01 was discovered to contain a stack overflow via sched_end_time parameter.EPSS 1.0%CVE-2022-42080HIGHTenda AC1206 US_AC1206V1.0RTL_V15.03.06.23_multi_TD01 was discovered to contain a heap overflow via sched_start_time parameter.EPSS 1.0%CVE-2022-42079HIGHTenda AC1206 US_AC1206V1.0RTL_V15.03.06.23_multi_TD01 was discovered to contain a stack overflow via the function formWifiBasicSet.EPSS 1.0%CVE-2022-46449HIGHAn issue in MPD (Music Player Daemon) v0.23.10 allows attackers to cause a Denial of Service (DoS) via a crafted input.EPSS 1.0%CVE-2025-14237CRITICALBuffer overflow in XPS font parse processing on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on theEPSS 1.0%CVE-2023-1820HIGHHeap buffer overflow in Browser History in Google Chrome prior to 112.0.5615.49 allowed a remote attacker who convinced a user to engage in EPSS 1.0%CVE-2024-5499HIGHOut of bounds write in Streams API in Google Chrome prior to 125.0.6422.141 allowed a remote attacker to execute arbitrary code inside a sanEPSS 1.0%CVE-2026-70296CRITICALWindows Imaging Component Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-69819CRITICALRPC Runtime Library Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-29531CRITICALAn attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crEPSS 1.0%