# CVE-2025-66586: AzeoTech DAQFactory type confusion in .ctl file parsing

Source: https://junglewise.ai/threats/cve-2025-66586-azeotech-daqfactory-type-confusion-in-ctl-file-parsing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-11. Updated: 2026-06-04  
License: CC BY 4.0 with a link back

CVE-2025-66586 · Severity: high · CVSS 7.8 · Published 2025-12-11

AzeoTech DAQFactory, a software suite used for data acquisition and industrial automation, is vulnerable to a memory corruption flaw. An attacker can exploit this by tricking a user into opening a specially crafted .ctl project file. Successful exploitation could allow the attacker to take control of the system or disrupt industrial operations.

Technologies: [Azeotech Daqfactory](https://junglewise.ai/threats/technologies/daqfactory). Vendors: [Azeotech](https://junglewise.ai/threats/vendors/azeotech).

## Quick answers

**Is CVE-2025-66586 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-66586 being exploited in the wild.

**How severe is CVE-2025-66586?** High severity, with a CVSS score of 7.8, published 11 December 2025.

**Which products and versions are affected?** Azeotech Daqfactory <= 20.7 Build 2555.

**Is there a fix for CVE-2025-66586?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-66586 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2025-66586?** Check whether you run Azeotech Daqfactory at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A type confusion vulnerability (CWE-843) exists in AzeoTech DAQFactory release 20.7 (Build 2555) and earlier. The flaw occurs during the parsing of .ctl files when the application accesses a resource using an incompatible type, leading to memory corruption. An attacker can exploit this by providing a malicious .ctl file that, when opened by a user, triggers the vulnerability. This can result in arbitrary code execution in the context of the current process. The issue is resolved in DAQFactory Release 21.1.

## Affected products

- AzeoTech DAQFactory <= 20.7 Build 2555

## Timeline

- 2025-12-11: disclosed
- 2025-12-11: advisory
- 2025-12-30: other: Advisory updated by CISA

## References

- [https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-345-03.json](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-345-03.json)
- [https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-03](https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-03)

## Related threats

- [AzeoTech DAQFactory Use After Free in .ctl file parsing](https://junglewise.ai/threats/cve-2026-12921-azeotech-daqfactory-use-after-free-in-ctl-file-parsing)
- [AzeoTech DAQFactory type confusion via .ctl files](https://junglewise.ai/threats/cve-2026-12390-azeotech-daqfactory-type-confusion-via-ctl-files)
- [AzeoTech DAQFactory out-of-bounds write in .ctl file parsing](https://junglewise.ai/threats/cve-2025-66590-azeotech-daqfactory-out-of-bounds-write-in-ctl-file-parsing)
- [In AzeoTech DAQFactory release 20.7 (Build 2555), an Out-of-bounds Read vulnerability can be exploited by an attacker…](https://junglewise.ai/threats/cve-2025-66589-in-azeotech-daqfactory-release-20-7-build-2555-an-out-of-bounds)
- [AzeoTech DAQFactory uninitialized pointer access](https://junglewise.ai/threats/cve-2025-66588-azeotech-daqfactory-uninitialized-pointer-access)