Java Code Review Badge

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.

64 exercises 115 completed

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 332 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 276 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 120 students
  • Takes < 1 Hr. 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 202 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 236 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 198 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 289 students
  • Takes < 1 Hr. 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 227 students
  • Takes < 1 Hr. 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 259 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 243 students
  • Takes < 1 Hr. 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 110 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 107 students
  • Takes < 1 Hr. 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 197 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 227 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 243 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 308 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 210 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 254 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 234 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 208 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 188 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 261 students
  • Takes < 1 Hr. 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 193 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 170 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 406 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 211 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 252 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 181 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 196 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 240 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 171 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 173 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 161 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 204 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 218 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 182 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 189 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 210 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 179 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 184 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 161 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 194 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 213 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 180 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 167 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 225 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 231 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 170 students
  • Takes < 1 Hr. 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 303 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 301 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 277 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 246 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 248 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 243 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 210 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 219 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 183 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 205 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 193 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 188 students
  • Takes < 1 Hr. 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 192 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 187 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 182 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 166 students
  • Takes < 1 Hr. on average
  • Java