CVE-2026-3563
CWE-1289Published: March 17, 2026· Updated: Mar 19, 2026
Official 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.
Technical Analysis
CVE-2026-3563 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (1)
Quick Facts
Related CVEs (CWE-1289)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-3563 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts