Search/CVE-2026-21660
● CVE — Critical

CVE-2026-21660

VendorjohnsoncontrolsProductfrick controls quantum hd firmwareDiscoveredFeb 27, 2026UpdatedAug 24, 2026

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.

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CVSS v3.1
9.8 CRITICAL
EPSS
0.26%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 26, 2026
▲ 0.03pp
0.23% → 0.26% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
3 relationships
Timeline
disclosure → media coverage
Feb 27, 2026
Disclosure — published as a CVE record. · last revised by NVD Aug 24, 2026