Vulnerability Analysis
CVE-2026-63077
In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
CISA KEV
SSVC: Active Exploitation
Automatable
Deserialization
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
Temporal Score:-
EPSS:0.65%
Threat Intelligence Signals
CISA KEV
YES
KEV Date Added
2026-08-05
Ransomware Use
Unknown
KEV Due Date
2026-08-08
VulnCheck In-the-Wild
No
Nuclei Template
No
EPSS Score
0.649%
EPSS Percentile
47.6th pct
GHSA ID
GitHub Severity
CRITICAL
SSVC Exploitation
Active
SSVC Automatable
Yes
Vulnerability Class
Deserialization
Identity & Timeline
| Status | - |
| Assigning Authority | - |
| CVSS Version / Source | - |
| Reserved | - |
| Published | - |
| Patch Date (date_public) | - |
| Exploit DB Date | - |
| First GitHub PoC Date | - |
| Last Updated | - |
| Time to Patch (Days to fix) | - |
| Exploit Release Gap | - |
| PoC Release Gap | - |
| Exploit DB References | None identified |
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| No affected products specified. | ||
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