CVE-2020-27254: Emerson X-Stream Enhanced Xefd Firmware

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

Emerson Rosemount X-STREAM Gas AnalyzerX-STREAM enhanced XEGP, XEGK, XEFD, XEXF – all revisions, The affected products are vulnerable to improper authentication for accessing log and backup data, which could allow an attacker with a specially crafted URL to obtain access to sensitive information.

Affected products

• Emerson X-Stream Enhanced Xefd Firmware: any version
• Emerson X-Stream Enhanced Xegk Firmware: any version
• Emerson X-Stream Enhanced Xegp Firmware: any version
• Emerson X-Stream Enhanced Xexf Firmware: any version

Published 2020-12-21. Last modified 2026-06-17.