PT-2026-22322 · Johnson Controls · Quantum Hd

Noam Moshe · Published 2026-02-27 · Updated 2026-03-04 · CVE-2026-21656

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Johnson Controls Frick Controls Quantum HD versions 10.22 and prior

Description A flaw exists in Johnson Controls Frick Controls Quantum HD that allows for code injection. Insufficient input validation in certain parameters may allow for unexpected actions, potentially impacting device security before authentication.

Recommendations Update to a version later than 10.22.

Fix

RCE

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-21656

Affected Products

Quantum Hd

References · 8

• https://osv.dev/vulnerability/CVE-2026-21656 · Vendor Advisory
• https://johnsoncontrols.com/trust-center/cybersecurity/security-advisories · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21656 · Security Note
• https://cisa.gov/news-events/ics-advisories/icsa-26-057-01 · Note
• https://twitter.com/cracbot/status/2029150007354638386 · Twitter Post
• https://t.me/cveNotify/153446 · Telegram Post
• https://t.me/CVEtracker/45964 · Telegram Post
• https://twitter.com/TheHackerWire/status/2028560089288983000 · Twitter Post