CVE-2026-63077: listed in the CISA KEV catalog

CVE-2026-63077 · CVSS 9.8 CRITICAL · KEV 2026-08-05

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 exploited?

• Listed in the CISA KEV catalog on 2026-08-05.
• Federal remediation due 2026-08-08.
• Past that date by 7 days.
• Public exploit code: none found in monitored sources.
• Public detection rules exist.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-63077

• TeamCity’s Build Control Plane Is Under Attack (2026-07-31)

Primary sources

• NVD record
• CISA KEV catalog
• Nuclei template

What this record does not say

• No EPSS score.
• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.