What is the CVSS score of CVE-2021-27461?

CVE-2021-27461 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.4%.

X Stream Enhanced Xegp Firmware CVE-2021-27461

HIGH

Path Traversal (CWE-22)

2021-05-20 ics-cert@hq.dhs.gov

Path Traversal X Stream Enhanced Xegp Firmware X Stream Enhanced Xegk Firmware X Stream Enhanced Xefd Firmware X Stream Enhanced Xexf Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

May 20, 2021 - 12:15 nvd

HIGH 7.5

DescriptionNVD

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.

AnalysisAI

A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. 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. Affected products include: Emerson X-Stream Enhanced Xegp Firmware, Emerson X-Stream Enhanced Xegk Firmware, Emerson X-Stream Enhanced Xefd Firmware, Emerson X-Stream Enhanced Xexf Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.