How severe is CVE-2020-11690?

CVE-2020-11690 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11690 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11690?

CVE-2020-11690 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11690?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-11690 published?

CVE-2020-11690 was published on 2020-04-22 and last updated on 2026-06-17.

CVE-2020-11690

CVE-2020-11690 is a critical-severity vulnerability in Jetbrains Intellij Idea with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jetbrains Intellij Idea
Published: 2020-04-22
Last modified: 2026-06-17

Description

In JetBrains IntelliJ IDEA before 2020.1, the license server could be resolved to an untrusted host in some cases.

Frequently asked questions

What is CVE-2020-11690?: In JetBrains IntelliJ IDEA before 2020.1, the license server could be resolved to an untrusted host in some cases.
How severe is CVE-2020-11690?: CVE-2020-11690 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11690 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11690?: CVE-2020-11690 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11690?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-11690 published?: CVE-2020-11690 was published on 2020-04-22 and last updated on 2026-06-17.

References

https://blog.jetbrains.com/blog/2020/04/22/jetbrains-security-bulletin-q1-2020/

Affected products (1)

cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*

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