What is the CVSS score of CVE-2018-7559?

CVE-2018-7559 has a CVSS 3.0 base score of 5.3 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.6%.

Is there a patch available for CVE-2018-7559?

Yes, a patch is available for CVE-2018-7559. Update the affected software to the latest version immediately.

Ua Net Legacy CVE-2018-7559

MEDIUM

Key Management Errors (CWE-320)

2018-06-13 cve@mitre.org

Oracle Information Disclosure Ua Net Legacy Ua Netstandard

5.3

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Jun 13, 2018 - 18:29 nvd

MEDIUM 5.3

DescriptionNVD

An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub commit 2018-04-12, and OPC UA .NET Legacy Stack and Sample Code before GitHub commit 2018-03-13. A vulnerability in OPC UA applications can allow a remote attacker to determine a Server's private key by sending carefully constructed bad UserIdentityTokens as part of an oracle attack.

AnalysisAI

An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub commit 2018-04-12, and OPC UA .NET Legacy Stack and Sample Code before GitHub commit 2018-03-13. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable.

Technical ContextAI

This vulnerability is classified under CWE-320. An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub commit 2018-04-12, and OPC UA .NET Legacy Stack and Sample Code before GitHub commit 2018-03-13. A vulnerability in OPC UA applications can allow a remote attacker to determine a Server's private key by sending carefully constructed bad UserIdentityTokens as part of an oracle attack. Affected products include: Opcfoundation Ua-.Net-Legacy, Opcfoundation Ua-.Netstandard.

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.