Weaknesses of type CWE-787

5,208 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-2024-47134HIGHOut-of-bounds write vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.14.0 anEPSS 0.3%CVE-2023-3611HIGHOut-of-bounds write in Linux kernel's net/sched: sch_qfq componentEPSS 0.3%CVE-2022-44079MEDIUMpycdc commit 44a730f3a889503014fec94ae6e62d8401cb75e5 was discovered to contain a stack overflow via the component __sanitizer::StackDepotBaEPSS 0.3%CVE-2024-20044MEDIUMIn da, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System eEPSS 0.3%CVE-2022-43152MEDIUMtsMuxer v2.6.16 was discovered to contain a heap overflow via the function BitStreamWriter::flushBits() at /tsMuxer/bitStream.h.EPSS 0.3%CVE-2024-20028MEDIUMIn da, there is a possible out of bounds write due to lack of valudation. This could lead to local escalation of privilege with System execuEPSS 0.3%CVE-2024-20042MEDIUMIn da, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System eEPSS 0.3%CVE-2022-43148MEDIUMrtf2html v0.2.0 was discovered to contain a heap overflow in the component /rtf2html/./rtf_tools.h.EPSS 0.3%CVE-2024-39381HIGHAfter Effects | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2024-0090HIGHCVEEPSS 0.3%CVE-2025-52952HIGHJunos OS: MX Series with MPC-BUILTIN, MPC 1 through MPC 9: Receipt and processing of a malformed packet causes one or more FPCs to crashEPSS 0.3%CVE-2025-43224HIGHAn out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15EPSS 0.3%CVE-2024-4080HIGHMemory Corruption Due to Improper Length Checks in LabVIEW tdcore.dllEPSS 0.3%CVE-2024-52569HIGHA vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualization V14.3 (All versiEPSS 0.3%CVE-2025-26784MEDIUMAn issue was discovered in NAS in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330EPSS 0.3%CVE-2023-0970HIGHSerial API Buffer Overflow in Z/IP GatewayEPSS 0.3%CVE-2021-27242HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.0.1-48919. An attacker muEPSS 0.3%CVE-2024-4081HIGHMemory Corruption Due to Improper Length Check in NI LabVIEWEPSS 0.3%CVE-2021-34857HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3 (49160). An attacker EPSS 0.3%CVE-2026-84969MEDIUMHeap overflow via truncated base64 encoding of binary fields in length-limited JSON outputEPSS 0.3%