CVE-2025-58423 – This vulnerability allows attackers to upload m... (How to Fix)

Q: What is the severity of CVE-2025-58423?

CVE-2025-58423 has a CVSS score of 8.8 (HIGH). This vulnerability allows attackers to upload malicious configuration files to vulnerable systems, potentially causing denial-of-service, directory traversal, or arbitrary file read/write operations. It affects Advantech industrial control systems running vulnerable software versions. The attack executes with local system account privileges.

📋 TL;DR

This vulnerability allows attackers to upload malicious configuration files to vulnerable systems, potentially causing denial-of-service, directory traversal, or arbitrary file read/write operations. It affects Advantech industrial control systems running vulnerable software versions. The attack executes with local system account privileges.

💻 Affected Systems

Products:

Advantech iView

Versions: Versions prior to 5.7.04.6469

Operating Systems: Windows

Default Config Vulnerable: ⚠️ Yes

Notes: Systems with file upload functionality enabled are vulnerable. Industrial control systems in critical infrastructure sectors are particularly at risk.

📦 What is this software?

Deviceon\/iedge by Advantech

View all CVEs affecting Deviceon\/iedge →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise via arbitrary file write leading to remote code execution, system crash, or sensitive data exfiltration.

🟠

Likely Case

Denial-of-service through system crashes or file corruption, with potential for limited data access via directory traversal.

🟢

If Mitigated

No impact if proper file upload restrictions and input validation are implemented.

🌐 Internet-Facing: HIGH if vulnerable systems are exposed to internet with file upload functionality accessible.

🏢 Internal Only: MEDIUM as attackers would need internal network access, but exploitation is straightforward once access is gained.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: LOW

Exploitation requires file upload capability but is technically simple once access is obtained. No public exploit code is currently available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iView 5.7.04.6469

Vendor Advisory: https://www.advantech.com/emt/contact

Restart Required: Yes

Instructions:

1. Download iView version 5.7.04.6469 or later from Advantech. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart the system. 5. Verify the update was successful.

🔧 Temporary Workarounds

Disable File Upload Functionality

windows

Temporarily disable configuration file upload features until patching can be completed.

Refer to Advantech documentation for specific configuration changes to disable file uploads

Implement File Upload Restrictions

all

Configure web server or application to restrict file uploads to trusted sources only.

Configure firewall rules to restrict access to file upload endpoints
Implement IP whitelisting for upload functionality

🧯 If You Can't Patch

Implement strict network segmentation to isolate vulnerable systems from untrusted networks
Deploy application-level firewalls to monitor and block suspicious file upload patterns

🔍 How to Verify

Check if Vulnerable:

Check iView version via the application interface or system documentation. Versions below 5.7.04.6469 are vulnerable.

Check Version:

Check iView 'About' section in the application interface or review installation documentation

Verify Fix Applied:

Confirm iView version is 5.7.04.6469 or higher after applying the update.

📡 Detection & Monitoring

Log Indicators:

Unusual file upload activity to configuration endpoints
System crashes or errors following file uploads
Unauthorized file access attempts

Network Indicators:

HTTP POST requests to file upload endpoints with unusual file types or sizes
Traffic patterns indicating configuration file manipulation

SIEM Query:

source="iView" AND (event="file_upload" OR event="config_change") AND file_extension IN ("xml", "cfg", "conf")

📊 Metadata

CVE ID: CVE-2025-58423

CVSS v3 Score: 8.8 (HIGH)

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

CWE: CWE-22

EPSS Score: 0.1% exploit probability (27th percentile)

Published: November 6, 2025

Last Updated: November 21, 2025

🔗 References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-310-01.json Third Party Advisory
https://www.advantech.com/emt/contact Product
https://www.cisa.gov/news-events/ics-advisories/icsa-25-310-01 Mitigation,Third Party Advisory,US Government Resource

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