- Critical 9.8
- Known exploited (CISA KEV)
- Used in ransomware (CISA)
CVE-2026-63077
In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
Scores
The facts
- Published
- 27 July 2026
- Last changed
- 6 August 2026
- NVD status
- Analyzed
- Severity
- Critical, CVSS 9.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- Affects
- jetbrains teamcity
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 5 August 2026. CISA lists it as used in ransomware campaigns.
- EPSS
- 89.6% chance of exploitation activity in the next 30 days (percentile 100).
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