Java Code Review Badge

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92 Completed
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64 Exercises

The Java Code Review Badge is our badge dedicated to code review in Java. It covers the discovery of weaknesses and vulnerabilities using source code review.

Patch Review Exercises

Easy
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CVE-2009-387X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 266 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-2X24X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 205 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-2X457
  • This challenge covers the review of a CVE in a java codebase and its patch
  • Completed by 40 students
  • Takes -- on average
  • java

 

Easy
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CVE-2022-4x3x5
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 155 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-3X4X6
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 182 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-4X25X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 156 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-5143X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 236 students
  • Takes 1-2 Hrs. on average
  • Java

 

Easy
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CVE-2023-5X38X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 173 students
  • Takes -- on average
  • Java

 

Easy
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CVE-2024-2X31X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 212 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2024-X875X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 193 students
  • Takes -- on average
  • Java

 

Easy
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CVE-2025-627X0
  • This challenge covers the review of a CVE in a java codebase and its patch
  • Completed by 44 students
  • Takes < 1 Hr. on average
  • java

 

Easy
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CVE-2025-NOID
  • This challenge covers the review of a CVE in a java codebase and its patch
  • Completed by 41 students
  • Takes -- on average
  • java

 

Easy
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CVE-2007-546X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 156 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2009-26X3
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 180 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2018-XX34
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 201 students
  • Takes < 1 Hr. on average
  • java

 

Easy
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CVE-2020-9X8X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 260 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-357X1
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 163 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-458X1
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 207 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-X51X3
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 194 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2006-6X6X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 160 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2011-XX61
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 148 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2014-7X09
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 214 students
  • Takes 1-2 Hrs. on average
  • Java

 

Easy
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CVE-2015-3XX0
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 153 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-342XX
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 130 students
  • Takes < 1 Hr. on average
  • java

 

Easy
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CVE-2022-378xx
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 364 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-393XX
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 166 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-4504x
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 198 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-4x13x
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 133 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-x0x08
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 159 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-x0x09
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 199 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2022-X50X6
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 136 students
  • Takes < 1 Hr. on average
  • java

 

Easy
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CVE-2023-25X4X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 127 students
  • Takes < 1 Hr. on average
  • java

 

Easy
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CVE-2023-289X6
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 124 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-2XX60
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 161 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-2XX61
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 170 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-350XX
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 133 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-46XX2
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 138 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-2023-X48X9
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 159 students
  • Takes < 1 Hr. on average
  • java

 

Easy
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CVE-2023-XXX83
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 140 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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CVE-202X-2561X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 142 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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GHSA-95XX
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 124 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
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CVE-2012-5XX3
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 155 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
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CVE-2014-X80X
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 172 students
  • Takes < 1 Hr. on average
  • java

 

Medium
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CVE-2022-X41X9
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 138 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
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CVE-2022-XX910
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 128 students
  • Takes < 1 Hr. on average
  • java

 

Medium
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CVE-2023-2X8X1
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 177 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
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CVE-2023-30XX1
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 184 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
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CVE-2018-8x14
  • This challenge covers the review of a CVE in a Java codebase and its patch
  • Completed by 130 students
  • Takes 2-4 Hrs. on average
  • Java

 

Exercises

Easy
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Java Code Review 01
  • This challenge covers the review of a simple codebase in Java
  • Completed by 244 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 02
  • This challenge covers the review of a simple codebase in Java
  • Completed by 245 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 03
  • This challenge covers the review of a simple codebase in Java
  • Completed by 216 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 04
  • This challenge covers the review of a simple codebase in Java
  • Completed by 200 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 05
  • This challenge covers the review of a simple codebase in Java
  • Completed by 203 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 06
  • This challenge covers the review of a simple codebase in Java
  • Completed by 195 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 07
  • This challenge covers the review of a simple codebase in Java
  • Completed by 168 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 08
  • This challenge covers the review of a simple codebase in Java
  • Completed by 171 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 09
  • This challenge covers the review of a simple codebase in Java
  • Completed by 146 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 10
  • This challenge covers the review of a simple codebase in Java
  • Completed by 163 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 11
  • This challenge covers the review of a simple codebase in Java
  • Completed by 153 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 12
  • This challenge covers the review of a simple codebase in Java
  • Completed by 150 students
  • Takes -- on average
  • Java

 

Easy
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Java Code Review 13
  • This challenge covers the review of a simple codebase in Java
  • Completed by 152 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 14
  • This challenge covers the review of a simple codebase in Java
  • Completed by 147 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 15
  • This challenge covers the review of a simple codebase in Java
  • Completed by 147 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
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Java Code Review 16
  • This challenge covers the review of a simple codebase in Java
  • Completed by 130 students
  • Takes < 1 Hr. on average
  • Java