CVE-2026-21660

6.9 mediumEPSS 0.3%

Medium (6.9) in johnsoncontrols frick controls quantum hd firmware. EPSS 0.3% chance of exploitation in the next 30 days.

A Hardcoded Email Credentials Saved as Plaintext in Firmware (CWE-256: Plaintext Storage of a Password) vulnerability in Frick Controls Quantum HD version 10.22 and prior lead to unauthorized access, exposure of sensitive information, and potential misuse or system compromise This issue affects Frick Controls Quantum HD version 10.22 and prior.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-31)
CWEs: CWE-522, CWE-256
Published: 2026-02-27
Modified: 2026-08-24
Record from: the NVD, synced 2026-10-19

Affected

johnsoncontrols:frick_controls_quantum_hd_firmware

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

Check your stack JSON