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Mallory
High

Unrestricted File Upload in Advantech WebAccess/SCADA

IdentifiersCVE-2025-14849CWE-434· Unrestricted Upload of File with…

CVE-2025-14849 is a high-severity vulnerability in Advantech WebAccess/SCADA that allows remote attackers to upload files of dangerous types without restriction. This flaw enables attackers to upload and execute arbitrary code on the affected system. The vulnerability is present in at least version 9.2.1 and is due to insufficient validation of uploaded files, allowing files with executable or otherwise dangerous content to be placed on the server and subsequently executed.

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For your environment

Are you exposed to this one?

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows remote code execution on the target system, potentially leading to full system compromise. Attackers can gain control over the SCADA environment, manipulate industrial processes, or pivot further into the network. The vulnerability poses a significant risk to critical infrastructure sectors using Advantech WebAccess/SCADA.

Mitigation

If you can’t patch tonight, do this now.

Until the software can be updated, enforce strict file type and size restrictions on upload functionality, implement robust server-side validation and sanitization of uploaded files, and scan all uploads for malicious content. Isolate the SCADA system from business networks and restrict network exposure. Use secure remote access methods such as VPNs with up-to-date software.

Remediation

Patch, then assume compromise.

Upgrade Advantech WebAccess/SCADA to version 9.2.2 or later, which addresses this vulnerability. Ensure that all systems are running the latest secure version as provided by the vendor.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AdvantechWebaccess/Scadaapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity5

Community discussion across Reddit, Mastodon, and other social sources.