CVE-2023-42793
JetBrains TeamCity Authentication Bypass Vulnerability
IN CISA KEV
In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible
- Vendor
- JetBrains
- Product
- TeamCity
- CVSS 3.1
- 9.8 (critical), scored by NVD (primary)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1
- 9.8 (critical), scored by cve@jetbrains.comCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2023-09-19
- NVD modified
- 2026-06-17
- NVD status
- Analyzed
CISA KEV
- Date added
- 2023-10-04
- Due date
- 2023-10-25
- Ransomware use
- Known
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS
100% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- attackerkb.com (Third Party Advisory)
- blog.jetbrains.com (Vendor Advisory)
- www.jetbrains.com (Vendor Advisory)
- www.rapid7.com (Broken Link, Third Party Advisory)
- www.securityweek.com (Press/Media Coverage)
- attackerkb.com (Third Party Advisory)
- blog.jetbrains.com (Vendor Advisory)
- www.jetbrains.com (Vendor Advisory)
- www.rapid7.com (Broken Link, Third Party Advisory)
- www.securityweek.com (Press/Media Coverage)
- www.cisa.gov (US Government Resource)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.