Falhas do tipo CWE-125

5.130 resultados

Leitura fora dos limites de memória

Ocorre quando o código tenta ler dados de uma posição de memória fora do intervalo alocado para um buffer ou array. O programa não valida o índice ou tamanho antes de acessar, causando leitura de dados inválidos, corrupção de informações ou revelação de dados sensíveis da memória adjacente.

Exemplo

Um processador de imagem PNG lê 4 bytes de um buffer de 2 bytes para validar uma assinatura, ou uma função copia uma string sem verificar se o índice fornecido pelo usuário extrapola o tamanho real do array. Em ambos os casos, dados fora do escopo pretendido são lidos.

Como mitigar

Sempre validar índices e comprimentos contra os limites reais do buffer antes de qualquer leitura. Usar funções seguras (ex: `strncpy` em vez de `strcpy`, bounds-checking em loops) e implementar testes com entradas extremas (size zero, índices negativos, valores muito grandes).

CVE-2026-70635HIGHTimescaleDB 2.29.1 Out-of-Bounds Read DoS via Bulk Dictionary Decompression Negative IndexEPSS 0.4%CVE-2020-36521HIGHAn out-of-bounds read was addressed with improved input validation. This issue is fixed in iCloud for Windows 11.4, iOS 14.0 and iPadOS 14.0EPSS 0.4%CVE-2026-70368MEDIUMStunnel: stack-based out-of-bounds read/write in stunnel s_vlog via oversized log messageEPSS 0.4%CVE-2026-9910HIGHOut of bounds memory access in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sEPSS 0.4%CVE-2026-54616HIGHNanaZip: Heap out-of-bounds read in NanaZip SquashFS LZ4 decompressor via unchecked negative return valueEPSS 0.4%CVE-2023-42073LOWPDF-XChange Editor Doc Object Out-Of-Bounds Read Information Disclosure VulnerabilityEPSS 0.4%CVE-2024-13169HIGHAn out-of-bounds read in Ivanti EPM before the 2024 January-2025 Security Update and 2022 SU6 January-2025 Security Update allows a local auEPSS 0.4%CVE-2022-0497—A vulnerbiility was found in Openscad, where a .scad file with no trailing newline could cause an out-of-bounds read during parsing of annotEPSS 0.4%CVE-2026-49177MEDIUMWindows TCP/IP Information Disclosure VulnerabilityEPSS 0.4%CVE-2026-25987MEDIUMImageMagick has heap buffer over-read in MAP image decoderEPSS 0.4%CVE-2026-54542LOWNimiq: Out-of-bounds panic in KeyNibbles::Add from oversized child suffix in a deserialized proofEPSS 0.4%CVE-2026-41071MEDIUMlibheif: Heap buffer over-read in SampleAuxInfoReader via crafted HEIF sequence file with mismatched saiz sample countEPSS 0.4%CVE-2020-26312HIGHGHSL-2020-254: Arbitrary file read and/or write in dotmeshEPSS 0.4%CVE-2025-43963LOWIn LibRaw before 0.21.4, phase_one_correct in decoders/load_mfbacks.cpp allows out-of-buffer access because split_col and split_row values aEPSS 0.4%CVE-2026-55564MEDIUMFreeRDP: Out-of-bounds read in glyph_cache_get via crafted glyph fragmentsEPSS 0.4%CVE-2026-3547HIGHwolfSSL: out-of-bounds read (DoS) in ALPN parsing due to incomplete validationEPSS 0.4%CVE-2024-20737MEDIUMAdobe After Effect 2024 RGB File parsing Memory Corruption VulnerabilityEPSS 0.4%CVE-2024-42484MEDIUMESP-NOW OOB Vulnerability In Group Type MessageEPSS 0.4%CVE-2026-72999MEDIUMWindows USB Hub Driver Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-69490MEDIUMWindows USB Mass Storage Class Driver Elevation of Privilege VulnerabilityEPSS 0.4%