Threat video1:00
CVE-2026-21656 Quantum HD Code Injection: Detection & IOCs
Attackers can inject code into Frick Quantum HD controllers before login. Track it with 9 detection rules, 9 IOCs and a free Splunk SPL rule.
Read the full threat intel for CVE-2026-21656 - Johnson Controls Frick Controls Quantum HD Code… →
Chapters
- 0:00The hookFrick Controls Quantum threat, rated CVSS 9.8.
- 0:05The storyThe same advisory covers five sibling CVEs.
- 0:13Attack pathSend crafted pre-auth request.
- 0:26AttributionNo threat actor: this was defensive research.
- 0:31Indicators of compromise4 indicators to hunt: 2 URLs and 2 package names.
- 0:37MITRE ATT&CK techniques9 ATT&CK techniques, from reconnaissance to collection.
- 0:41Remediation4 steps now: Identify all Frick Controls Quantum HD devices running firmware 10.22.
- 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript
0:00Frick Controls Quantum threat, rated CVSS 9.8.
0:05The same advisory covers five sibling CVEs.
0:09These are analyst assessments, not observed attacker behavior.
0:14Send crafted pre-auth request.
0:16Execute injected code on controller.
0:27No threat actor: this was defensive research.
0:314 indicators to hunt: 2 URLs and 2 package names.
0:379 ATT&CK techniques, from reconnaissance to collection.
0:424 steps now: Identify all Frick Controls Quantum HD devices running firmware 10.22.
0:519 detection rules, in SPL, KQL and Sigma.
0:56Threadlinqs. The unified security engineering platform.