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 116 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 335 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 279 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 126 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 207 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 242 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 204 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 293 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 231 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 263 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 248 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 115 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 112 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 198 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 231 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 245 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 310 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 212 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 256 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 236 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 211 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 191 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 265 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 196 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 173 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 409 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 213 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 254 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 184 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 198 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 243 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 173 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 175 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 163 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 206 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 221 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 184 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 191 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 212 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 181 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 186 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 163 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 197 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 216 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 183 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 169 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 228 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 233 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 172 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 308 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 306 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 281 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 249 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 252 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 246 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 213 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 222 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 186 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 208 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 196 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 191 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 195 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 190 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 185 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 169 students
  • Takes < 1 Hr. on average
  • Java