CVE-2021-27467
CWE-1021Published: May 20, 2021· Updated: Jun 17, 2026
Official Description
A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The affected product’s web interface allows an attacker to route click or keystroke to another page provided by the attacker to gain unauthorized access to sensitive information.
Technical Analysis
CVE-2021-27467 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-1021)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-27467 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts