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 119 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 349 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 288 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 138 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 214 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 251 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 213 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 302 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 239 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 272 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 257 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 123 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 122 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 208 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 240 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 253 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 318 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 222 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 267 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 244 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 219 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 198 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 273 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 203 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 181 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 415 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 222 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 264 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 193 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 207 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 252 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 184 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 184 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 169 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 214 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 229 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 194 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 199 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 221 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 189 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 195 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 169 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 204 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 223 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 190 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 176 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 235 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 241 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 179 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 316 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 314 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 288 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 255 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 258 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 252 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 220 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 228 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 193 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 215 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 203 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 198 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 202 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 197 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 192 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 176 students
  • Takes < 1 Hr. on average
  • Java