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CVE-2024-27198

99
FAUCET Score

CVE-2024-27198 is a critical authentication bypass vulnerability affecting JetBrains TeamCity versions prior to 2023.11.4, allowing unauthenticated attackers to perform administrative actions. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. This vulnerability is actively exploited in the wild, including by ransomware campaigns, with public exploit code readily available via Metasploit and Nuclei templates. The high EPSS score and extensive community discussion underscore the urgency of patching this flaw.

Impacted Technologies

VendorProductVersion(s)CPE
< 2023.11.4CPE matchmatch criteria
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
>= 0, < 2023.11.4CPE match
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.94%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Mar 7, 2024
Metasploit: JetBrains TeamCity Unauthenticated Remote Code Execution · Mar 4, 2024
Nuclei: CVE-2024-27198 · Mar 5, 2024
ExploitDB: EDB-52411 · Aug 11, 2025
This CVE's current EPSS score of 0.9994 is in the 100th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
darkreading.com / cyberattacks-data-breaches/jetbrains-teamcity-mass-exploitation-underway-rogue-accounts-thrive
Press/Media CoverageThird Party Advisory
jetbrains.com / privacy-security/issues-fixed
Vendor Advisory