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CVE-2026-3563

5.5 · MEDIUM

Improper input validation in the apps and endpoints configuration in PowerShell Universal before 2026.1.4 allows an authenticated user with permissions to create or modify Apps or Endpoints to over…

Published Mar 17, 2026CWE-1289EPSS 0.41%

Overview

CVE-2026-3563 is a medium-severity vulnerability. It was published on March 17, 2026 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 can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Improper input validation in the apps and endpoints configuration in PowerShell Universal before 2026.1.4 allows an authenticated user with permissions to create or modify Apps or Endpoints to override existing application or system routes, resulting in unintended request routing and denial of service via a conflicting URL path.

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

Refdevolutions.net/security/advisories/DEVO-2026-0008

How CyberStrike helps

Frequently asked questions

What is CVE-2026-3563?

CVE-2026-3563 is a medium-severity vulnerability. It was published on March 17, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-3563?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-3563?

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-2026-3563?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-3563 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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