CVE-2026-63077
CVSS v3
9.8
CRITICAL
EPSS Score
0.6 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
CISA Known Exploited Vulnerability
- Date Added
- 2026-08-05
- Patch Due Date
- 2026-08-08
- Ransomware Use
- Unknown
Technical details
- CVSS v3 Vector
- 3.1
- Published
- 2026-07-27
- Last Modified
- 2026-07-28
Frequently asked questions
What is CVE-2026-63077?
In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
Is CVE-2026-63077 actively exploited?
Yes. CVE-2026-63077 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 8/8/2026.
What is the CVSS score for CVE-2026-63077?
CVE-2026-63077 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.
Is CVE-2026-63077 affecting your environment?
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