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CVE-2021-27459

CRITICAL
9.8
CVSS Score
Published: May 20, 2021 at 11:51 AM UTC
Updated: June 17, 2026 at 03:44 AM UTC
8 products affected across 1 vendorX Stream Enhanced Xegk FirmwareX Stream Enhanced Xefd FirmwareX Stream Enhanced Xegp Firmware

Using Emerson Rosemount X-STREAM Gas Analyzer by N/A?

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-21-138-01

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-434

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