CVE-2026-94216

Deferred Deferred - Pending Action

Open Redirect in ST Engineering iDirect Evolution WebServer

Publication date: 2026-09-21

Last updated on: 2026-09-30

Assigner: VulDB

Description

A vulnerability was determined in ST Engineering iDirect Evolution and Velocity WebServer Evolution. This vulnerability affects unknown code of the file /authorize of the component HTTP Request Handler. Executing a manipulation of the argument Success can lead to http response splitting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The validated environment is an EOL X7 (or an un-modelled legacy Evolution 21.x), and current supported releases (X10, X11, Velocity 5.x+) have no validated evidence of impact.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-21

Last Modified

2026-09-30

Generated

2026-10-12

AI Q&A

2026-09-21

EPSS Evaluated

2026-10-10

NVD

CVE-2026-94216

EUVD

EUVD-2026-83907

Affected Vendors & Products

Vendor	Product	Version / Range
st_engineering	idirect_evolution	*
st_engineering	velocity_webserver_evolution	to 20260717 (inc)
wavlink	wn530h4	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-601	The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
CWE-93	The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
CWE-113	The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.

Attack-Flow Graph

Executive Summary

CVE-2026-94216 is an open redirect vulnerability in ST Engineering iDirect Evolution and Velocity WebServer Evolution up to 20260717. It affects the authorize function in the HTTP Header Handler component by allowing manipulation of the Success argument, which can redirect users to malicious sites. The attack can be executed remotely.

Detection Guidance

To detect this vulnerability, inspect HTTP headers for unusual 'Success' parameter values in requests to /usr/sbin/webserver. Monitor for open redirects or unexpected redirects in web traffic. Check logs for suspicious command execution attempts in the HTTP Header Handler component.

Impact Analysis

This vulnerability could allow attackers to redirect users to phishing sites or malicious pages, potentially leading to credential theft or malware infections. It may also enable unauthorized access to sensitive data if combined with other exploits.

Compliance Impact

The vulnerability allows open redirect and potential unauthorized system access via crafted HTTP headers, which could lead to data breaches or unauthorized data exposure. This may impact compliance with GDPR (data protection) and HIPAA (health data security) by enabling unauthorized access to sensitive information.

Mitigation Strategies

Immediately update the ST Engineering iDirect Evolution and Velocity WebServer Evolution to the latest patched version. If no patch is available, restrict network access to the webserver component, disable unnecessary services, and monitor for exploit attempts. Consider isolating affected systems until mitigation is complete.

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