SEPTEMBER 13, 2026
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Case File

CVE-2026-63077

CRITICAL · CVSS 9.8 EPSS 84.73% CISA KEV · Actively Exploited Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-27 · Last synced 2026-08-26

CyberRota Analysis

AI-Generated

JetBrains TeamCity versions prior to 2026.1.3 and 2025.11.7 are vulnerable to unauthenticated remote code execution through the agent polling protocol, allowing attackers to execute arbitrary code on affected systems. This critical vulnerability poses a significant risk to any organization using these versions, particularly those with exposed TeamCity servers. Organizations should prioritize patching or upgrading their installations to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CISA KEV Details

Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.

Ransomware use: Unknown

Added to KEV: 2026-08-05

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE
CVE-2026-63077
Severity
CRITICAL
CVSS
9.8
EPSS
84.73%

Original NVD Description

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

Related CVEs

Other vulnerabilities affecting the same vendor(s)