{"id":"CVE-2026-63077","vendor_project":"JetBrains","product":"TeamCity","vulnerability_name":"JetBrains TeamCity Deserialization of Untrusted Data Vulnerability","date_added":"2026-08-05","due_date":"2026-08-08","known_ransomware_use":"Known","short_description":"JetBrains TeamCity contains a deserialization of untrusted data vulnerability that could allow unauthenticated remote code execution via the agent polling protocol.","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.","cwes":"CWE-502","cvss_version":"3.1","cvss_severity":"CRITICAL","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","nvd_published":"2026-07-27","nvd_status":"Analyzed","epss":0.86518,"epss_percentile":0.99729,"cvss_score":9.8,"days_published_to_kev":9,"source":"https://data.cybermax-tools.workers.dev/cve/CVE-2026-63077","by":"CyberMax"}