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Improper Input Validation

CWE-20

12,572 vulnerabilities are classified as Improper Input Validation (CWE-20). The most exploitable are shown first (by EPSS), each with its CVSS score, exploit-prediction, CISA KEV status, and available fix.

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
CVE-2019-0604Critical9.8100%KEV + Ransom-
CVE-2018-0296High7.5100%KEVFix
CVE-2022-47966Critical9.8100%KEV + RansomFix
CVE-2022-1471High8.3100%-Fix
CVE-2020-16040Medium6.5100%-Fix
CVE-2018-0171Critical9.8100%KEV-
CVE-2013-0156High7.599%-Fix
CVE-2017-0148High8.199%KEV + RansomFix
CVE-2022-24086Critical9.899%KEV-
CVE-2023-22515Critical9.899%KEV + RansomFix
CVE-2017-3881Critical9.899%KEV-
CVE-2021-21978Critical9.899%-Fix
CVE-2017-9791Critical9.899%KEV-
CVE-2023-32560Critical9.899%-Fix
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-8562High7.598%--
CVE-2019-1821High8.898%-Fix
CVE-2021-44832Medium6.698%-Fix
CVE-2013-5211Medium5.098%-Fix
CVE-2016-3714High8.497%KEVFix
CVE-2016-8869Critical9.897%--
CVE-2023-23397Critical9.897%KEVFix
CVE-2025-54236Critical9.197%KEV-
CVE-2009-0927High8.897%KEVFix
CVE-2026-34197High8.896%KEVFix
CVE-2019-1652High7.296%KEVFix
CVE-2014-0114High7.596%-Fix
CVE-2023-21554Critical9.895%-Fix
CVE-2024-21413Critical9.895%KEVFix
CVE-2013-2248Medium5.895%--
CVE-2024-31309High7.595%-Fix
CVE-2016-5674Critical9.895%--
CVE-2023-28302High7.594%-Fix
CVE-2020-1350Critical10.092%KEV-
CVE-2011-3368Medium5.091%-Fix
CVE-2009-0545High10.091%--
CVE-2024-5276Critical9.890%-Fix
CVE-2017-0004High7.590%--
CVE-2016-2776High7.589%-Fix
CVE-2012-0151High7.889%KEV-
CVE-2020-3243Critical9.888%--
CVE-2017-12611Critical9.888%--
CVE-2020-27131High8.188%--
CVE-2023-2868Critical9.487%KEV-
CVE-2016-6603Critical9.887%--
CVE-2005-4560High7.586%--
CVE-2017-5816Critical9.886%-Fix
CVE-2024-25641Critical9.186%-Fix
CVE-2012-0152Medium4.386%--
CVE-2017-15715High8.186%-Fix
CVE-2011-0997High7.584%-Fix
CVE-2021-3781Critical9.984%-Fix
CVE-2011-4885Medium5.084%--
CVE-2020-3161Critical9.884%KEV-
CVE-2023-39265Low3.884%--
CVE-2010-2075High7.584%--
CVE-2024-47076High8.683%-Fix
CVE-2025-1098High8.883%--
CVE-2013-3861High7.883%--
CVE-2017-5817Critical9.883%-Fix
CVE-2016-0792High8.883%--
CVE-2009-2765High8.383%--
CVE-2016-8870High8.182%--
CVE-2015-6128High7.282%--
CVE-2016-2098High7.381%-Fix
CVE-2018-5955Critical9.881%--
CVE-2011-5034High7.881%--
CVE-2016-3087Critical9.881%--
CVE-2011-0923High10.081%--
CVE-2015-7808High7.581%--
CVE-2008-4397High10.081%--
CVE-2013-4123Medium5.080%--
CVE-2008-0244High10.080%--
CVE-2023-22952High8.880%KEVFix
CVE-2002-1359High10.080%--
CVE-2021-33620Medium6.580%-Fix
CVE-2010-0022High7.879%--
CVE-2016-8740High7.579%-Fix
CVE-2017-17215High8.879%--
CVE-2026-34910Critical10.079%KEVFix
CVE-2023-2915High7.578%--
CVE-2010-1587Medium5.078%--
CVE-2019-9851Critical9.878%-Fix
CVE-2013-0081Medium5.077%--
CVE-2016-10176Critical9.877%--
CVE-2018-1000049High7.577%--
CVE-2024-22120Critical9.177%-Fix
CVE-2018-8065High7.577%--
CVE-2015-8605Medium6.576%-Fix
CVE-2016-6433High8.876%--
CVE-2006-3942High7.876%--
CVE-2010-2550High10.076%--
CVE-2010-2729High9.376%--
CVE-2017-17850High7.575%-Fix

Showing the top 100 of 12,572. Browse all 12,572 in the lookup tool.