Fallos del tipo CWE-457

246 resultados

Uso de variável não inicializada

Ocorre quando o código usa uma variável antes de atribuir um valor válido a ela. A variável contém lixo de memória (valores aleatórios deixados por operações anteriores), levando a comportamento imprevisível: falhas, execução de código não intencional ou exposição de dados sensíveis.

Ejemplo

Um programa lê um arquivo de configuração em uma variável sem garantir que ela foi preenchida antes de usá-la em uma operação crítica. Se a leitura falhar silenciosamente, a variável mantém seu conteúdo anterior (senha de outro processo, por exemplo) e é transmitida para um servidor remoto.

Cómo mitigar

Sempre inicialize variáveis com valores seguros (zero, null ou constante adequada) no ponto de declaração. Use análise estática (linters, compiladores com flags como -Wall -Wuninitialized em C/C++) para detectar essas falhas antes da compilação.

CVE-2026-9944LOWUninitialized Use in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to leEPSS 0.2%CVE-2025-7981HIGHAshlar-Vellum Graphite VC6 File Parsing Uninitialized Variable Remote Code Execution VulnerabilityEPSS 0.2%CVE-2025-65295HIGHMultiple vulnerabilities in Aqara Hub firmware update process in the Camera Hub G3 4.1.9_0027, Hub M2 4.3.6_0027, and Hub M3 4.3.6_0025 deviEPSS 0.2%CVE-2022-2308—A flaw was found in vDPA with VDUSE backend. There are currently no checks in VDUSE kernel driver to ensure the size of the device config spEPSS 0.2%CVE-2025-1650HIGHCATPRODUCT File Parsing Uninitialized Variable VulnerabilityEPSS 0.2%CVE-2025-1649HIGHCATPRODUCT File Parsing Uninitialized Variable VulnerabilityEPSS 0.2%CVE-2026-21690MEDIUMiccDEV has Type Confusion in CIccTagXmlTagData::ToXml()EPSS 0.2%CVE-2024-10204HIGHHeap-based Buffer Overflow and Uninitialized Variable vulnerabilities exist in eDrawings from Release SOLIDWORKS 2024 through Release SOLIDWORKS 2025EPSS 0.2%CVE-2026-10008MEDIUMUninitialized Use in GPU in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to obtain potentially sensitive inforEPSS 0.2%CVE-2026-11159MEDIUMUninitialized Use in Skia in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML pagEPSS 0.2%CVE-2025-7984HIGHAshlar-Vellum Cobalt AR File Parsing Uninitialized Variable Remote Code Execution VulnerabilityEPSS 0.2%CVE-2025-5749MEDIUMWOLFBOX Level 2 EV Charger BLE Encryption Keys Uninitialized Variable Authentication Bypass VulnerabilityEPSS 0.2%CVE-2024-56446MEDIUMVulnerability of variables not being initialized in the notification module Impact: Successful exploitation of this vulnerability may affectEPSS 0.2%CVE-2026-22188MEDIUMPanda3D <= 1.10.16 Deploy-Stub Stack Exhaustion via Unbounded alloca()EPSS 0.2%CVE-2026-1333HIGHUse of Uninitialized Variable vulnerability affecting the EPRT file reading procedure in SOLIDWORKS eDrawings from Release SOLIDWORKS Desktop 2025 through Release SOLIDWORKS Desktop 2026EPSS 0.2%CVE-2026-11668MEDIUMUninitialized Use in Codecs in Google Chrome on Linux, ChromeOS prior to 149.0.7827.103 allowed a remote attacker to leak cross-origin data EPSS 0.2%CVE-2026-11696MEDIUMUninitialized Use in Video in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer prEPSS 0.2%CVE-2026-12469MEDIUMUninitialized Use in GPU in Google Chrome on Android prior to 149.0.7827.155 allowed a remote attacker to leak cross-origin data via a craftEPSS 0.2%CVE-2025-5047HIGHDGN File Parsing Uninitialized Variable VulnerabilityEPSS 0.2%CVE-2025-13763MEDIUMLibopensc: opensc: multiple uses of uninitialized variableEPSS 0.2%