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-2023-27340HIGHPDF-XChange Editor PNG File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-32160HIGHPDF-XChange Editor PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-27341HIGHPDF-XChange Editor TIF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-32159HIGHPDF-XChange Editor PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-32161HIGHPDF-XChange Editor PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-27339HIGHPDF-XChange Editor PNG File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-46866MEDIUMIn International Color Consortium DemoIccMAX 79ecb74, CIccCLUT::Interp3d in IccProfLib/IccTagLut.cpp in libSampleICC.a attempts to access arEPSS 0.6%CVE-2023-49351CRITICALA stack-based buffer overflow vulnerability in /bin/webs binary in Edimax BR6478AC V2 firmware veraion v1.23 allows attackers to overwrite oEPSS 0.6%CVE-2026-95508HIGHLibslirp: libslirp: heap buffer overflow in dhcpv6/tftp response builders on small interface mtuEPSS 0.6%CVE-2024-42952HIGHTenda FH1201 v1.2.0.14 (408) was discovered to contain a stack overflow via the page parameter in the fromqossetting function. This vulnerabEPSS 0.6%CVE-2025-27105LOWAugAssign evaluation order causing OOB write within the object in VyperEPSS 0.6%CVE-2024-36243HIGHArkcompiler Ets Runtime has an out-of-bounds read vulnerabilityEPSS 0.6%CVE-2026-62349HIGHTDengine: Off-by-One Buffer OverflowEPSS 0.6%CVE-2024-36260HIGHArkcompiler Ets Runtime has an out-of-bounds write vulnerabilityEPSS 0.6%CVE-2023-4020CRITICALUnvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memoryEPSS 0.6%CVE-2026-28693HIGHImageMagick has an integer overflow in DIB coder can result in out of bounds read or writeEPSS 0.6%CVE-2018-9411HIGHIn decrypt of ClearKeyCasPlugin.cpp there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote arbitraEPSS 0.6%CVE-2026-81625HIGHStack buffer overflow in Greenbone OS and openvas-scannerEPSS 0.6%CVE-2026-34588HIGHOpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/WriteEPSS 0.6%CVE-2025-57709LOWQsync CentralEPSS 0.6%