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CVE-2020-1123

5.5 · MEDIUM

A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations.

Published May 21, 2020EPSS 1.09%

Overview

CVE-2020-1123 is a medium-severity vulnerability. It was published on May 21, 2020 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could cause a system to stop responding.

To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability.

The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refmsrc.microsoft.com/update-guide/vulnerability/CVE-2020-1123Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1123

How CyberStrike helps

Frequently asked questions

What is CVE-2020-1123?

CVE-2020-1123 is a medium-severity vulnerability. It was published on May 21, 2020 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2020-1123?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-1123?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-1123?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-1123 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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