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-2023-46540HIGHTOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formNtp.EPSS 1.3%CVE-2023-46536HIGHTP-LINK TL-WR886N V7.0_3.0.14_Build_221115_Rel.56908n.bin was discovered to contain a stack overflow via the function chkRegVeriRegister.EPSS 1.3%CVE-2026-119958CRITICALWindows LDAP - Lightweight Directory Access Protocol Remote Code Execution VulnerabilityEPSS 1.3%CVE-2019-6827—A CWE-787: Out-of-bounds Write vulnerability exists in Interactive Graphical SCADA System (IGSS), Version 14 and prior, which could cause a EPSS 1.3%CVE-2023-24344HIGHD-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the webpage parameter at /goform/formWlanGuestSetuEPSS 1.3%CVE-2023-51889CRITICALStack Overflow vulnerability in the validate() function in Mathtex v.1.05 and before allows a remote attacker to execute arbitrary code via EPSS 1.3%CVE-2026-65414CRITICALAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOSEPSS 1.3%CVE-2024-8932CRITICALOOB access in ldap_escapeEPSS 1.3%CVE-2022-44202CRITICALD-Link DIR878 1.02B04 and 1.02B05 are vulnerable to Buffer Overflow.EPSS 1.3%CVE-2022-3597MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in _TIFFmemcpy in libtiff/tif_unix.c:346 when called from extractImageSection, tools/tiffcrop.c:682EPSS 1.3%CVE-2022-44806CRITICALD-Link DIR-882 1.10B02 and 1.20B06 is vulnerable to Buffer Overflow.EPSS 1.3%CVE-2022-3598MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in extractContigSamplesShifted24bits in tools/tiffcrop.c:3604, allowing attackers to cause a denialEPSS 1.3%CVE-2021-22755—A CWE-787: Out-of-bounds write vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in disclosure of iEPSS 1.3%CVE-2022-45688HIGHA stack overflow in the XML.toJSONObject component of hutool-json v5.8.10 allows attackers to cause a Denial of Service (DoS) via crafted JSEPSS 1.3%CVE-2022-3626MEDIUMLibTIFF 4.4.0 has an out-of-bounds write in _TIFFmemset in libtiff/tif_unix.c:340 when called from processCropSelections, tools/tiffcrop.c:7EPSS 1.3%CVE-2021-32998HIGHThe FANUC R-30iA and R-30iB series controllers are vulnerable to an out-of-bounds write, which may allow an attacker to remotely execute arbEPSS 1.3%CVE-2022-46393CRITICALAn issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffeEPSS 1.3%CVE-2023-31146HIGHVyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignmentEPSS 1.3%CVE-2023-26489CRITICALGuest-controlled out-of-bounds read/write on x86_64 in wasmtimeEPSS 1.3%CVE-2022-36511CRITICALH3C GR-1200W MiniGRW1A0V100R006 was discovered to contain a stack overflow via the function EditApAdvanceInfo.EPSS 1.3%