Advisory Details

February 3rd, 2026

AzeoTech DAQFactory Pro CTL File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability

ZDI-26-058
ZDI-CAN-27641

CVE ID CVE-2025-66589
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS AzeoTech
AFFECTED PRODUCTS DAQFactory
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of AzeoTech DAQFactory. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CTL files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS AzeoTech has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-03
DISCLOSURE TIMELINE
  • 2025-09-11 - Vulnerability reported to vendor
  • 2026-02-03 - Coordinated public release of advisory
  • 2026-02-03 - Advisory Updated
CREDIT Rocco Calvi (@TecR0c) with TecSecurity
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