What is the CVSS score of CVE-2021-27463?

CVE-2021-27463 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.9%.

X Stream Enhanced Xegp Firmware CVE-2021-27463

MEDIUM

Use of Persistent Cookies Containing Sensitive Information (CWE-539)

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

Information Disclosure X Stream Enhanced Xegp Firmware X Stream Enhanced Xegk Firmware X Stream Enhanced Xefd Firmware X Stream Enhanced Xexf Firmware

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

May 20, 2021 - 12:15 nvd

MEDIUM 5.3

DescriptionNVD

A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The affected applications utilize persistent cookies where the session cookie attribute is not properly invalidated, allowing an attacker to intercept the cookies and gain access to sensitive information.

AnalysisAI

A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-539. A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The affected applications utilize persistent cookies where the session cookie attribute is not properly invalidated, allowing an attacker to intercept the cookies and gain access to sensitive information. 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. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.