What is CVE-2019-15042?

CVE-2019-15042 is a high-severity vulnerability in Jetbrains Teamcity, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2019-10-01.

How severe is CVE-2019-15042?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jetbrains Teamcity

CVE-2019-15042

An issue was discovered in JetBrains TeamCity 2018.2.4. It had no SSL certificate validation for some external https connections. This was fixed in TeamCity 2019.1.

Vulnerability class: Improper Certificate Validation

Published 2019-10-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Jetbrains Teamcity — versions 2018.2.4

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/ (Vendor Advisory)

Frequently asked questions

What is CVE-2019-15042?: CVE-2019-15042 is a high-severity vulnerability in Jetbrains Teamcity, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2019-10-01.
How severe is CVE-2019-15042?: High severity. CVSS v3 base score is 7.5 out of 10.