CVE-2020-24677: Abb Symphony + Historian

High severity, CVSS 8.8. EPSS: 1.4% chance of exploitation in the next 30 days.

Vulnerabilities in the S+ Operations and S+ Historian web applications can lead to a possible code execution and privilege escalation, redirect the user somewhere else or download unwanted data.

Affected products

• Abb Symphony + Historian: version 3.0 only; version 3.1 only
• Abb Symphony + Operations: version 1.1 only; version 2.0 only; version 2.1 only; version 3.0 only; version 3.1 only; version 3.2 only; …

Published 2020-12-22. Last modified 2026-06-17.