CVE-2020-27254
mediumpriority · track · 30EPSS 0.013 · 70 %ileEUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationX-STREAM enhanced XEFDcisa_csaf_ot
In addition, Emerson recommends users of affected products continue to utilize current cybersecurity industry best practices. In the event such infrastructure is not implemented within an end user's network, action should be taken to ensure the affected products are connected to a well-protected network and properly segmented from the Internet. For more information on the Emerson Security notifications page.
https://www.emerson.com/en-us/support/security-notifications - MitigationX-STREAM enhanced XEGKcisa_csaf_ot
In addition, Emerson recommends users of affected products continue to utilize current cybersecurity industry best practices. In the event such infrastructure is not implemented within an end user's network, action should be taken to ensure the affected products are connected to a well-protected network and properly segmented from the Internet. For more information on the Emerson Security notifications page.
https://www.emerson.com/en-us/support/security-notifications - MitigationX-STREAM enhanced XEGPcisa_csaf_ot
In addition, Emerson recommends users of affected products continue to utilize current cybersecurity industry best practices. In the event such infrastructure is not implemented within an end user's network, action should be taken to ensure the affected products are connected to a well-protected network and properly segmented from the Internet. For more information on the Emerson Security notifications page.
https://www.emerson.com/en-us/support/security-notifications - MitigationX-STREAM enhanced XEXFcisa_csaf_ot
In addition, Emerson recommends users of affected products continue to utilize current cybersecurity industry best practices. In the event such infrastructure is not implemented within an end user's network, action should be taken to ensure the affected products are connected to a well-protected network and properly segmented from the Internet. For more information on the Emerson Security notifications page.
https://www.emerson.com/en-us/support/security-notifications
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (13)
Products and version ranges known to be affected.
- n/a Emerson Rosemount X-STREAM Gas Analyzer≤ X-STREAM enhanced XEGP, XEGK, XEFD, XEXF – all revisionsenisa_euvdEU
- emerson x-stream enhanced xefd firmwareall versionsnvdUScpe:2.3:o:emerson:x-stream_enhanced_xefd_firmware:*:*:*:*:*:*:*:*
- emerson x-stream enhanced xegk firmwareall versionsnvdUScpe:2.3:o:emerson:x-stream_enhanced_xegk_firmware:*:*:*:*:*:*:*:*
- emerson x-stream enhanced xegp firmwareall versionsnvdUScpe:2.3:o:emerson:x-stream_enhanced_xegp_firmware:*:*:*:*:*:*:*:*
- emerson x-stream enhanced xexf firmwareall versionsnvdUScpe:2.3:o:emerson:x-stream_enhanced_xexf_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-20-352-01Emerson Rosemount X-STREAM2020-12-17icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow an attacker through a specially crafted URL to download files and obtain sensitive information.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2020-27254cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-352-01cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.4480/cnnvd
- https://www.emerson.com/documents/automation/xstream-notification-researcher-response-r1-en-7238504.pdfPatchcnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-352-01enisa_euvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-352-01Third Party AdvisoryUS Government Resourcenvd
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