Name: CVE-2026-63077: Deserialization of Untrusted Data
Creator: Rapid7
Published: 2026-07-27T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-63077, CWE-502, Exploited in the Wild, CISA KEV Exploit, Rapid7 Critical, Metasploit Module, Used with Ransomware, CVSS 9.8, EPSS 0.8957, CISA KEV

Emergent ThreatCVE-2026-63077:Rapid7 Analysis: Unauthenticated Remote Code Execution in JetBrains TeamCity (CVE-2026-63077)Blog ↗

In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Jetbrains Teamcity	—	Update your TeamCity to the latest available version	Jul 28, 2026	Jul 27, 2026

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CVSS Details

Covered by Rapid7

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