What is CVE-2024-27198?
In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible
The record classifies CVE-2024-27198 under weakness classes CWE-288, NVD-CWE-Other. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 969 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 99.9% probability of exploitation in the next 30 days, higher than 99.9% of all scored CVEs
- CISA KEV
- Listed since 2024-03-07, federal remediation deadline 2024-03-28 — used in known ransomware campaigns
- Threadlinqs priority
- 10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum
- Published
- 2024-03-04, last modified 2025-10-21
Is CVE-2024-27198 being exploited?
CISA added CVE-2024-27198 to the Known Exploited Vulnerabilities catalog on 2024-03-07, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2024-03-28 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. Weaponised exploit code for CVE-2024-27198 is publicly available. 11 public proof-of-concept repositories are tracked for this identifier. A ProjectDiscovery Nuclei detection template exists (http/cves/2024/CVE-2024-27198.yaml). It currently carries a trending score of 50 in the Threadlinqs vulnerability feed.
- W01fh4cker/CVE-2024-27198-RCE (github)
- yoryio/CVE-2024-27198 (github)
- Stuub/RCity-CVE-2024-27198 (github)
- Chocapikk/CVE-2024-27198 (github)
- passwa11/CVE-2024-27198-RCE (github)
- geniuszly/CVE-2024-27198 (github)
- ptd200110/CVE-2024-27198-SOC-Lab (github)
- CharonDefalt/CVE-2024-27198-RCE (github)
Affected products and versions
- Jetbrains: Teamcity
How to fix CVE-2024-27198
Vendor advisory: https://www.jetbrains.com/privacy-security/issues-fixed/. Because CVE-2024-27198 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2024-03-28. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2024-27198
3 tracked threats in the Threadlinqs corpus reference CVE-2024-27198, either in the campaign’s CVE list or as an indicator on the campaign record.
- Qilin Ransomware Suspect Arrested in Japan, Extradited to Germany; Qilin Affiliate Exploited Check Point VPN Zero-Day CVE-2026-50751 — HIGH · 2026-10-07
- 2026 Ransomware Surge Targeting US Organizations: Identity-First Compromise, BYOVD, and Living-Off-the-Cloud Exfiltration (Qilin, Akira, Clop, INC Ransom, Play, DragonForce, Sinobi) — HIGH · 2026-08-23
- Storm-1175 Medusa Ransomware Zero-Day Exploitation Campaign (CVE-2026-23760, CVE-2025-10035) — CRITICAL · 2026-04-06
Sources
Enriched from CVE.org, FIRST EPSS, CISA KEV, public proof-of-concept repositories, ProjectDiscovery Nuclei. Last verified by Threadlinqs on .