What is the CVSS score of CVE-2020-16873?

CVE-2020-16873 has a CVSS 3.1 base score of 4.7 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N. EPSS exploitation probability: 4.0%.

Is there a patch available for CVE-2020-16873?

Yes, a patch is available for CVE-2020-16873. Update the affected software to the latest version immediately.

Xamarin Forms CVE-2020-16873

MEDIUM

Initialization of a Resource with an Insecure Default (CWE-1188)

2020-09-11 secure@microsoft.com

Google RCE Microsoft Xamarin Forms

4.7

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

4.7 MEDIUM

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

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Sep 11, 2020 - 17:15 cve.org

MEDIUM 4.7

DescriptionCVE.org

A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. This vulnerability could allow an attacker to execute arbitrary Javascript code on a target system. For the attack to be successful, the targeted user would need to browse to a malicious website or a website serving the malicious code through Xamarin.Forms. The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView.

AnalysisAI

A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-1188. A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. This vulnerability could allow an attacker to execute arbitrary Javascript code on a target system. For the attack to be successful, the targeted user would need to browse to a malicious website or a website serving the malicious code through Xamarin.Forms. The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView. Affected products include: Microsoft Xamarin.Forms. Version information: prior to 83.0.4103.106..

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.