CVE-2025-66586

Code execution via CTL parser type confusion

Published Dec 11, 2025 · Updated Dec 11, 2025

Type confusion in AzeoTech DAQFactory 20.7 and earlier allows remote attackers to execute code when a target opens a crafted .ctl file. The CTL parser insufficiently validates user-supplied data before accessing a resource as an incompatible type, causing memory corruption. Exploitation requires the target to visit a malicious page or open the file, and resulting code runs in the current process context.

CVSS severity7.3
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in AzeoTech DAQFactory 20.7 and earlier allows remote attackers to execute code when a target opens a crafted .ctl file. The CTL parser insufficiently validates user-supplied data before accessing a resource as an incompatible type, causing memory corruption. Exploitation requires the target to visit a malicious page or open the file, and resulting code runs in the current process context.

The record

CVE
CVE-2025-66586
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
AzeoTech
Product
DAQFactory
Classifications
CWE-843, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=Release 20.7 (Build 2555)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

AzeoTech · DAQFactoryversion=0 <=Release 20.7 (Build 2555)

Published CVSS scores

7.8ICS-CERTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.3ICS-CERTCVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1204.002User Execution: Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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