High

Type Confusion in AzeoTech DAQFactory .ctl File Parsing

IdentifiersCVE-2025-66586CWE-843· Access of Resource Using…

CVE-2025-66586 is an access of resource using incompatible type (type confusion) vulnerability in AzeoTech DAQFactory release 20.7 (Build 2555). The flaw is triggered while DAQFactory parses a specially crafted .ctl file, leading to memory corruption due to use of a resource as an incompatible type. The available reporting indicates that exploitation occurs during file parsing and can corrupt process memory, which may be leveraged to achieve code execution in the context of the current DAQFactory process.

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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 can cause memory corruption and may allow arbitrary code execution in the context of the current process. Depending on how the application is deployed, this could result in compromise of the DAQFactory workstation or engineering environment, application instability or crashes, and potential follow-on access to data or operational workflows available to the affected process.

Mitigation

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

Restrict access to .ctl files and prevent untrusted or unsolicited project/control files from being opened in DAQFactory. Use safe mode where available, apply document editing passwords as recommended in the advisory context, and follow ICS defensive practices such as minimizing network exposure, placing control-system assets behind firewalls, and securing remote access through VPNs. Because exploitation requires malicious file delivery and user interaction, procedural controls around file provenance and operator handling materially reduce risk until patching is complete.

Remediation

Patch, then assume compromise.

Upgrade AzeoTech DAQFactory to version 21.1, which the provided advisory states addresses these vulnerabilities. Replace affected release 20.7 (Build 2555) and prior with the vendor-fixed release and validate that .ctl file handling occurs only on updated systems.

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

AzeotechDaqfactoryapplication

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

ACTIVITY FEED

Recent activity

3 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

3 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

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Exposure mapping

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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 activity2