What’s Vulnerable › Vulnerabilities

CVE-2021-25758

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-03 · updated 2026-06-17
• Weakness: CWE-502

Description

In JetBrains IntelliJ IDEA before 2020.3, potentially insecure deserialization of the workspace model could lead to local code execution.

Affected products

• JetBrains IntelliJ IDEA: before 2020.3 — fixed in 2020.3

How to fix

Upgrade to a fixed version: JetBrains IntelliJ IDEA 2020.3. Check the vendor advisory for mitigations.

References

• https://blog.jetbrains.com
• https://blog.jetbrains.com/blog/2021/02/03/jetbrains-security-bulletin-q4-2020/
• https://blog.jetbrains.com
• https://blog.jetbrains.com/blog/2021/02/03/jetbrains-security-bulletin-q4-2020/

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