Hard-coded cryptographic key in Johnson Controls Kantech Entrapass
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.
Summary
Johnson Controls Kantech Entrapass before 9.20 uses a hard-coded cryptographic key (CWE-321). A local user with low privileges can use the key to mount a padding oracle attack, which can lead to high confidentiality, integrity and availability impact.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
Use of hard-coded cryptographic key vulnerability in Johnson Controls Kantech Entrapass allows Padding Oracle Crypto Attack. This issue affects Kantech Entrapass: before 9.20.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Johnson Controls | Kantech Entrapass | before 9.20 | 9.20 | Patch available | CNA |
- Kantech Entrapass VendorJohnson Controls Affected before 9.20 Fixed in 9.20 Patch available CNA
Remediation
Update Kantech Entrapass to version 9.20 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
- Fix · CNA Kantech Entrapass (Johnson Controls) Fixed in 9.20
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Johnson Controls Kantech Entrapass 9.20
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-80475 Cleartext memory storage flaw in Johnson Controls Kantech EntrapassPriority LOW 25
Timeline
- 2026-10-26 Threatist record created from CVE-2026-71456
- 2026-10-27 Alias added: GHSA-378c-wr7c-cmxq
- 2026-10-27 Priority changed: MEDIUM → LOW
- 2026-11-02 CISA SSVC decision points changed
More Johnson Controls vulnerabilities
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- TI-2023-01901 Improper Authentication for OpenBlue Enterprise Manager Data Collector CVSS 3.1CRITICAL 10.0
- TI-2023-04421 An unauthorized user could access debug features in Quantum HD Unity products that were… CVSS 3.1CRITICAL 10.0
- TI-2026-17437 Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution CVSS 4.0HIGH 8.8
- TI-2025-19344 Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool CVSS 4.0CRITICAL 9.3
- TI-2023-03311 Missing brute-force protection in Johnson Controls IQ Wifi 6 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-71456 · CVE Program
- CVE-2026-71456 · NVD
- FIRST EPSS
- GHSA-378c-wr7c-cmxq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences