Arbitrary file upload in Emerson X-Stream Enhanced Xefd
CVE-2021-27459
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Emerson X-Stream Enhanced Xefd
- Emerson X-Stream Enhanced Xefd Firmware
- Emerson X-Stream Enhanced Xegk
- Emerson X-Stream Enhanced Xegk Firmware
- Emerson X-Stream Enhanced Xegp
- Emerson X-Stream Enhanced Xegp Firmware
- Emerson X-Stream Enhanced Xexf
- Emerson X-Stream Enhanced Xexf Firmware
- Emerson Rosemount X-Stream Gas Analyzer — versions X-STREAM enhanced XEGP – all revisions, X-STREAM enhanced XEGK – all revisions, X-STREAM enhanced XEFD – all revisions, X-STREAM enhanced XEXF – all revisions
Weakness classification (CWE)
References
- us-cert.cisa.gov/ics/advisories/icsa-21-138-01 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27459?
- CVE-2021-27459 is a critical-severity vulnerability in Emerson X-Stream Enhanced Xefd, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-05-20.
- How severe is CVE-2021-27459?
- Critical severity. CVSS v3 base score is 9.8 out of 10.