CVE-2023-42793

CRITICALNVD 9.89.8—Trending — 4 sources updated this weekExploited in the wild

9.8

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

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 99.8%
KEV: ⚠ Exploited

Published

September 19, 2023

Last Modified

October 24, 2025

Advisory Details (5)

Auto-updated Jun 1, 2026

⚠️ Active exploitation confirmed. No patch confirmed yet.

generic

CVE-2023-42793 Vulnerability in TeamCity: Post-Mortem | The TeamCity Blog

https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/

generic

Packet Storm

http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html

generic🔴 Active Exploitation

Source Code at Risk: Critical Code Vulnerability in CI/CD Platform TeamCity | Sonar

https://www.sonarsource.com/blog/teamcity-vulnerability/

generic🟡 PoC Available

Recently Patched TeamCity Vulnerability Exploited to Hack Servers - SecurityWeek

https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/

generic

Fixed security issues

https://www.jetbrains.com/privacy-security/issues-fixed/

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 18:05 UTCEG score recompute
2026-06-03 18:05 UTCGHSA enrichment
2026-06-03 13:56 UTCEG score recompute
2026-06-03 13:56 UTCGHSA enrichment
2026-06-03 09:47 UTCEG score recompute
2026-06-03 09:47 UTCGHSA enrichment
2026-06-03 05:38 UTCEG score recompute
2026-06-03 05:38 UTCGHSA enrichment
2026-06-03 01:29 UTCEG score recompute
2026-06-03 01:29 UTCGHSA enrichment
2026-06-02 21:20 UTCEG score recompute
2026-06-02 21:20 UTCGHSA enrichment
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 18:32 UTCkev_newly_listed
2026-06-02 17:11 UTCEG score recompute
2026-06-02 17:11 UTCGHSA enrichment
2026-06-02 13:02 UTCEG score recompute
2026-06-02 13:02 UTCGHSA enrichment

Publicly available exploits

(7 references)

Working exploit code is in the public domain (1 Metasploit module) (4 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCB4l3rI0n/CVE-2023-42793
First seen Apr 24, 2024
JetBrains TeamCity 2023.05.3 - Remote Code Execution (RCE), CVE-2023-42793
Open source ↗
GitHub PoChotplugin0x01/CVE-2023-42793
First seen Apr 21, 2024
JetBrains TeamCity Unauthenticated Remote Code Execution - Python3 Implementation
Open source ↗
Exploit-DBEDB-51884
First seen Mar 14, 2024
JetBrains TeamCity 2023.05.3 - Remote Code Execution (RCE)
Open source ↗
GitHub PoCZenmovie/CVE-2023-42793
First seen Oct 5, 2023
PoC of CVE-2023-42793
Open source ↗
GitHub PoCH454NSec/CVE-2023-42793
First seen Sep 29, 2023
JetBrains TeamCity Authentication Bypass CVE-2023-42793 Exploit
Open source ↗
Metasploitexploit/multi/http/jetbrains_teamcity_rce_cve_2023_42793✓ verified
First seen Sep 19, 2023
JetBrains TeamCity Unauthenticated Remote Code Execution
Open source ↗
Nucleihttp/cves/2023/CVE-2023-42793.yaml
First seen Jan 1, 2023
JetBrains TeamCity < 2023.05.4 - Remote Code Execution
Open source ↗

Frequently asked(6)

What is CVE-2023-42793?

CVE-2023-42793 is a critical vulnerability published on September 19, 2023. In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

When was CVE-2023-42793 disclosed?

CVE-2023-42793 was first published in the National Vulnerability Database on September 19, 2023, with the most recent update on October 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-42793 actively exploited?

Yes. CISA added CVE-2023-42793 to the Known Exploited Vulnerabilities catalog on October 4, 2023, affecting JetBrains TeamCity. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2023-42793?

CVE-2023-42793 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2023-42793?

CVE-2023-42793 affects JetBrains TeamCity. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2023-42793?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-42793, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-42793

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CVE-2023-42793

📅 Published

🔄 Last Modified

📋 Advisory Details (5)

CVE-2023-42793 Vulnerability in TeamCity: Post-Mortem | The TeamCity Blog

Packet Storm

Source Code at Risk: Critical Code Vulnerability in CI/CD Platform TeamCity | Sonar

Recently Patched TeamCity Vulnerability Exploited to Hack Servers - SecurityWeek

Fixed security issues

Weakness Classification(2)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-42793?

Published

Last Modified

Advisory Details (5)

Frequently asked(6)