How to fix CVE-2026-4221?

Within 24 hours: Identify all instances of Tiandy Easy7 7.17.0 in your environment and document network exposure. Implement network segmentation to restrict access to the /rest/file/uploadLedImage endpoint to trusted sources only. Within 7 days: Deploy WAF rules to block POST requests to the vulnerable endpoint or implement authentication enforcement at the network perimeter. Escalate vendor communication for patch timeline. Within 30 days: Evaluate alternative solutions or upgrade to a patched version if released. Conduct forensic analysis on affected systems for signs of compromise or exploitation.

Is Easy7 Integrated Management Platform affected by CVE-2026-4221?

Tiandy Easy7 Integrated Management Platform version 7.17.0 contains a critical, actively exploited file upload vulnerability that allows unauthenticated attackers to execute arbitrary code on affected systems.

CVE-2026-4221

EUVD-2026-12357 HIGH

2026-03-16 VulDB

7.3

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

PoC Detected

Mar 16, 2026 - 14:53 vuln.today

Public exploit code

Analysis Generated

Mar 16, 2026 - 07:00 vuln.today

EUVD ID Assigned

Mar 16, 2026 - 07:00 euvd

EUVD-2026-12357

CVE Published

Mar 16, 2026 - 06:32 nvd

HIGH 7.3

Description

A vulnerability was found in Tiandy Easy7 Integrated Management Platform 7.17.0. This affects an unknown part of the file /rest/file/uploadLedImage of the component Endpoint. The manipulation of the argument File results in unrestricted upload. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Analysis

An unrestricted file upload vulnerability exists in the Tiandy Easy7 Integrated Management Platform version 7.17.0, specifically in the /rest/file/uploadLedImage endpoint. This vulnerability allows remote attackers without authentication to upload arbitrary files, potentially leading to remote code execution. …

Remediation

Within 24 hours: Identify all instances of Tiandy Easy7 7.17.0 in your environment and document network exposure. Implement network segmentation to restrict access to the /rest/file/uploadLedImage endpoint to trusted sources only. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +36

POC: +20

CVE-2026-4221 vulnerability details – vuln.today

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CVE-2026-4221

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CVE-2026-4221

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