Vulnerability Report

CVE-2026-3563

Title: Improper input validation in PowerShell Universal leads to DoS

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2026-3563.

CWE Category CWE-1289
Published Date Mar 17, 2026
Modified Date Mar 19, 2026
Exploit Status Not Found
Score 5.5 CVSS v
Exploit Probability (EPSS)
0.41%

Vulnerability Summary

CVE-2026-3563: 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.

Impacted Vendors

D
devolutions 1
I
ironmansoftware 1

Reference Links

https://devolutions.net/security/advisories/DEVO-2026-0008
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
5.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-3563 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L

Affected Stack

No specific products linked.