Which products and versions are affected by CVE-2024-27198?

Affected: TeamCity (Jetbrains). The full list is in the CVE brief.

Is CVE-2024-27198 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 5, 2024 and is known to be used in ransomware campaigns.

Is CVE-2024-27198 in the CISA KEV catalog?

Yes. It was added on Mar 7, 2024 with a federal remediation due date of Mar 28, 2024.

Is there a public exploit for CVE-2024-27198?

Public exploit code is available.

Is there a fix for CVE-2024-27198?

Fixed versions are available, including TeamCity 2023.11.4.

How urgently should CVE-2024-27198 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2024-27198

CriticalExploitedPublic exploit

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

Published Mar 4, 2024 · Updated Oct 24, 2025

Key Facts

Patch immediately

CVE-2024-27198 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting TeamCity (Jetbrains).
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 5, 2024 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 100% probability of exploitation in the next 30 days.
Fixed versions are available, including TeamCity 2023.11.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

100%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2024-27198 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

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

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Mar 7, 2024	Mar 28, 2024	Known
Industry KEV feed	Mar 5, 2024	Mar 28, 2024	Known
CIRCL KEV	Mar 5, 2024	Mar 28, 2024	Known
ENISA EUVD	Mar 7, 2024	n/a	Not reported

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
TeamCityJetbrains	See advisory	2023.11.4

Patched Releases

TeamCity

2023.11.4

Timeline

Publicly disclosed
Mar 4, 2024
Added to Industry KEV feed
Mar 5, 2024
Added to CIRCL KEV
Mar 5, 2024
Added to CISA KEV
Mar 7, 2024
Added to ENISA EUVD
Mar 7, 2024
Last updated
Oct 24, 2025

Weakness Type

CWE-288 Authentication Bypass Using an Alternate Path or Channel

References

10 more references in the full CVE brief

FAQ

Common Questions.

In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible
Affected: TeamCity (Jetbrains). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 5, 2024 and is known to be used in ransomware campaigns.
Yes. It was added on Mar 7, 2024 with a federal remediation due date of Mar 28, 2024.
Public exploit code is available.
Fixed versions are available, including TeamCity 2023.11.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2024-27198 Running On Your Attack Surface?

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