What is the CVSS score of CVE-2021-42027?

CVE-2021-42027 has a CVSS 3.1 base score of 7.4 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.5%.

Is there a patch available for CVE-2021-42027?

Yes, a patch is available for CVE-2021-42027. Update the affected software to the latest version immediately.

Sinumerik Edge CVE-2021-42027

HIGH

Improper Certificate Validation (CWE-295)

2021-12-14 productcert@siemens.com

Information Disclosure Sinumerik Edge

7.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.4 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Dec 14, 2021 - 12:15 nvd

HIGH 7.4

DescriptionNVD

A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly validate the server certificate when initiating a TLS connection. This could allow an attacker to spoof a trusted entity by interfering in the communication path between the client and the intended server.

AnalysisAI

A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required.

Technical ContextAI

This vulnerability is classified under CWE-295. A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly validate the server certificate when initiating a TLS connection. This could allow an attacker to spoof a trusted entity by interfering in the communication path between the client and the intended server. Affected products include: Siemens Sinumerik Edge.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.