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CVE-2023-42793

View the latest critical CVEs issued
This is a free service offered by Red Hot Cyber to the community. It allows you to view, on a single page, information about a single CVE from the National Vulnerability Database (NVD) and the National Institute of Standards and Technology (NIST) of the United States of America, the Forum of Incident Response and Security Teams (FIRST) regarding the EPSS score and percentile, data from the KEV catalog of the Cybersecurity and Infrastructure Security Agency (CISA), as well as selected resources from Red Hot Cyber and other international sources.

National Vulnerability Database Information

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

CVSS Base Score: 9.8 (v3.1)

The **CVSS Base Score** is a score from **0 to 10** that represents the intrinsic severity of a vulnerability. A higher score indicates greater severity.

Value
0.02.55.07.510.0
Published on: 09/19/2023 17:15:08
Last modified: 10/24/2025 20:48:15
NIST: CVE source from the National Vulnerability Database (NVD)

CVSS Metrics Details

  • Base Severity: CRITICAL
  • Vector String: 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

Common Weakness Enumeration (CWE)

Database CWE: v4.18

CWE-288: Authentication Bypass Using an Alternate Path or Channel ↗

The product requires authentication, but the product has an alternate path or channel that does not require authentication.

CWE-306: Missing Authentication for Critical Function ↗

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Fonte: MITRE CWE


FIRST Information

EPSS Score: 0.9291

The **EPSS (Exploit Prediction Scoring System)** is a score from **0 to 1** that indicates the **probability** that a vulnerability will be exploited in the real world in the next 30 days. A higher value indicates a greater likelihood of exploitation.

Value
0.00.250.50.751.0

Percentile: 0.9976

The **Percentile** indicates how much higher this vulnerability's EPSS score is compared to all other vulnerabilities in the EPSS database. For example, a percentile of 0.90 (90%) means that 90% of vulnerabilities have an EPSS score equal to or lower than the current one.

Value
0.00.250.50.751.0

*Data updated as of: 2025-12-26


CISA Information (Known Exploited Vulnerabilities)

The **CISA KEV Catalog** lists vulnerabilities that have been **actively exploited in the real world**. If a CVE is present in this catalog, it indicates that the threat is immediate and mitigation should be a top priority.

CVE **CVE-2023-42793** **IS PRESENT** in the CISA KEV Catalog!

  • Vulnerability Name: JetBrains TeamCity Authentication Bypass Vulnerability
  • Short Description: JetBrains TeamCity contains an authentication bypass vulnerability that allows for remote code execution on TeamCity Server.
  • Date Added to KEV: 10/04/2023
  • Vendor/Product: JetBrains / TeamCity
  • Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  • Due Date: 10/25/2023

Articles published on Red Hot Cyber


NVD References

Exploit PoC from GitHub