Quick answers
- Is CVE-2026-12921 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12921 being exploited in the wild.
- How severe is CVE-2026-12921?
- Informational severity, with a CVSS score of 8.4, published 25 June 2026.
- Which products and versions are affected?
- Azeotech Daqfactory 21.1 and prior.
- Is there a fix for CVE-2026-12921?
- 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-2026-12921 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-12921?
- 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 Use After Free (CWE-416) vulnerability exists in AzeoTech DAQFactory versions 21.1 and prior. The flaw is triggered when the application improperly manages memory while parsing specially crafted .ctl files. An attacker can exploit this by convincing a user to open a malicious file, leading to memory corruption and potentially arbitrary code execution with the privileges of the application. While the NVD entry focuses on Use After Free, related CISA documentation also mentions Type Confusion (CWE-843) in the same version range. Mitigation strategies include operating in 'Safe Mode' when loading untrusted documents and restricting write access to folders containing .ctl files.
Affected products
- AzeoTech DAQFactory 21.1 and prior
Timeline
- 2026-06-18: advisory: Initial CISA ICS Advisory published
- 2026-06-25: disclosed: CVE published to NVD dataset