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CVE-2024-27198

JetBrains TeamCity Authentication Bypass

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwareEPSS 99.9%
  1. Published4 Mar 2024
  2. Added to CISA KEV7 Mar 2024
  3. Remediation due28 Mar 2024
Actively exploited (CISA KEV)

JetBrains TeamCity contains an authentication bypass vulnerability that allows an attacker to perform admin actions.

Added to KEV: 7 Mar 2024Federal remediation due: 28 Mar 2024Used in ransomware

Description

In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

JetBrains Teamcity< 2023.11.4

Remediation

Fixed in
JetBrains Teamcity≥ 2023.11.4

References

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Frequently asked

Is CVE-2024-27198 being actively exploited?

Yes. CVE-2024-27198 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 7 Mar 2024. It has been used in ransomware campaigns.

How severe is CVE-2024-27198?

CVE-2024-27198 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 99.9% probability of exploitation.

Which products are affected by CVE-2024-27198?

Affected products include JetBrains Teamcity.

How do I fix CVE-2024-27198?

Upgrade affected software to a fixed version, for example JetBrains Teamcity 2023.11.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-27198 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.