CVE-2023-42793

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 99.99%
EPSS Percentile: 99.98%
CISA KEV: YES — Known Exploited Vulnerability

Description

In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

Technical Details

CVSS Version: 3.1
CNA / NVD Source: cve@jetbrains.com
Published: 20-Sep-2023 00:15
Last Modified: 17-Jun-2026 13:24
EPSS Date: 2026-10-10
CWE: CWE-288, CWE-306

CVSS Vector


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

CISA KEV Details

Date Added: 2023-10-04
Remediation Due: 2023-10-25
Known Ransomware Campaign Use: Known
Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: https://blog.jetbrains.com/teamcity/2023/09/critical-security-issue-affecting-teamcity-on-premises-update-to-2023-05-4-now/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-42793

Affected Products / Versions

jetbrains / teamcity
Version / affected range: * · before (exclusive) 2023.05.4
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*

References

Last enrichment sync: 11-Oct-2026 12:51
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

JetBrains TeamCity (CVE-2023-42793). CIS Analyzes KrustyLoader’s Use of S3 Buckets to Deliver Sliver

CVE (6)

Malware (2)

Threat Actors (2)

MITRE ATT&CK (4)

Vendors (5)

Products (7)

Tools (1)

Countries (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.