CVE-2026-12921— Use after free in AzeoTech DAQFactory
Quick assessment
Affected
AzeoTech DAQFactory
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
AzeoTech daqfactory是AzeoTech公司的一套数据采集与监控软件。 AzeoTech DAQFactory 21.1及之前版本存在资源管理错误漏洞，该漏洞源于释放后重用问题，可能导致攻击者使用特制的.ctl文件实现代码执行。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AzeoTech | DAQFactory | ≤ 21.1 |
affected |
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I. Basic Information for CVE-2026-12921
Vulnerability Information
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Vulnerability Title
Use after free in AzeoTech DAQFactory
Source: CVE Program / CVE List V5
Vulnerability Description
In AzeoTech DAQFactory versions 21.1 and prior, a Use After Free vulnerability can be exploited by an attacker using specially crafted .ctl files which can result in code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
AzeoTech DAQFactory 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AzeoTech daqfactory是AzeoTech公司的一套数据采集与监控软件。 AzeoTech DAQFactory 21.1及之前版本存在资源管理错误漏洞，该漏洞源于释放后重用问题，可能导致攻击者使用特制的.ctl文件实现代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| AzeoTech | DAQFactory | 0 ~ 21.1 | - |
|
II. Public POCs for CVE-2026-12921
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-12921 (1)
IV. Related Vulnerabilities
Same product: DAQFactory
-
CVE-2026-12390
Access of resource using incompatible type ('type confusion' -
CVE-2025-66585
Use After Free vulnerability in AzeoTech DAQFactory -
CVE-2025-66586
Type Confusion vulnerability in AzeoTech DAQFactory -
CVE-2025-66588
Access of Uninitialized Pointer vulnerability in AzeoTech DA -
CVE-2025-66589
Out-of-bounds Read vulnerability in AzeoTech DAQFactory
Same vendor: AzeoTech
-
CVE-2026-12390
Access of resource using incompatible type ('type confusion' -
CVE-2025-66585
Use After Free vulnerability in AzeoTech DAQFactory -
CVE-2025-66586
Type Confusion vulnerability in AzeoTech DAQFactory -
CVE-2025-66588
Access of Uninitialized Pointer vulnerability in AzeoTech DA -
CVE-2025-66589
Out-of-bounds Read vulnerability in AzeoTech DAQFactory
Same weakness: CWE-416
-
CVE-2026-77235
Missing privilege check in SecureContext_FreeContext in Free -
CVE-2026-39909
llama.cpp Use-After-Free in RPC GRAPH_RECOMPUTE Handler -
CVE-2026-17118
Vulnerabilities in IBM AIX and PowerVM VIOS -
CVE-2026-76021
Chrome <151.0.7922.173 DOM UAF远程代码执行 -
CVE-2026-76017
Chrome<151.0.7922.173 Chromoting Use-After-Free致代码执行
V. Comments for CVE-2026-12921
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