Cyber Resilience

CVE-2021-27461

High

Published: 20 May 2021

Published
20 May 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0033 56.3th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-27461 is a high-severity Path Traversal (CWE-22) vulnerability in Emerson X-Stream Enhanced Xegp Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 43.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The affected webserver applications allow access to stored data that can be obtained by using specially crafted URLs.

CWE(s)
CWE-22

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

emerson
x-stream enhanced xegp firmware
all versions
emerson
x-stream enhanced xegk firmware
all versions
emerson
x-stream enhanced xefd firmware
all versions
emerson
x-stream enhanced xexf firmware
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-10 Information Input Validation
addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

References