What is the CVSS score of CVE-2023-5909?

CVE-2023-5909 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: 0.4%.

Industrial Gateway Server CVE-2023-5909

HIGH

Improper Validation of Certificate with Host Mismatch (CWE-297)

2023-11-30 ics-cert@hq.dhs.gov

Information Disclosure Industrial Gateway Server Keepserverex Opc Aggregator Thingworx Industrial Connectivity Thingworx Kepware Edge Thingworx Kepware Server Kepserver Enterprise Top Server

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

Nov 30, 2023 - 22:15 nvd

HIGH 7.5

DescriptionNVD

KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.

AnalysisAI

KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect. 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 under CWE-297. KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect. Affected products include: Ge Industrial Gateway Server, Ptc Keepserverex, Ptc Opc-Aggregator, Ptc Thingworx Industrial Connectivity, Ptc Thingworx Kepware Edge.

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.