How severe is CVE-2020-11688?

CVE-2020-11688 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-11688 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11688?

CVE-2020-11688 affects Jetbrains Teamcity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11688?

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

When was CVE-2020-11688 published?

CVE-2020-11688 was published on 2020-04-22 and last updated on 2026-06-17.

CVE-2020-11688

CVE-2020-11688 is a high-severity vulnerability in Jetbrains Teamcity with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Jetbrains Teamcity
Published: 2020-04-22
Last modified: 2026-06-17

Description

In JetBrains TeamCity before 2019.2.1, the application state is kept alive after a user ends his session.

Frequently asked questions

What is CVE-2020-11688?: In JetBrains TeamCity before 2019.2.1, the application state is kept alive after a user ends his session.
How severe is CVE-2020-11688?: CVE-2020-11688 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-11688 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11688?: CVE-2020-11688 affects Jetbrains Teamcity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11688?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-11688 published?: CVE-2020-11688 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:teamcity:*:*:*:*:*:*:*:*

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