Improper input validation in Johnson Controls C-CURE 9000
Priority MEDIUM 42CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
An insecure client auto update feature in C-CURE 9000 can allow remote execution of lower privileged Windows programs.
Why it matters now
EPSS 0.02096 81st percentileScored 2026-11-07
Fix Fixed C-CURE 9000 (Johnson Controls): 2.80
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Johnson Controls | C-CURE 9000 | All versions of C-CURE 9000 prior to 2.80 to before 2.80 | 2.80 | Patch available | CNA |
- C-CURE 9000 VendorJohnson Controls Affected All versions of C-CURE 9000 prior to 2.80 to before 2.80 Fixed in 2.80 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:johnsoncontrols:c-cure_9000_firmware:*:*:*:*:*:*:*:* | before 2.80 | Vulnerable | Johnson Controls |
| cpe:2.3:h:johnsoncontrols:c-cure_9000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Johnson Controls |
- cpe:2.3:o:johnsoncontrols:c-cure_9000_firmware:*:*:*:*:*:*:*:* Versions before 2.80 Vulnerable ·Johnson Controls
- cpe:2.3:h:johnsoncontrols:c-cure_9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Johnson Controls
Remediation
- Fix · CNA C-CURE 9000 (Johnson Controls) Fixed in 2.80
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27660
- 2026-10-03 Alias added: GHSA-2cfq-h45g-8h84
References
More Johnson Controls C-cure 9000 Firmware vulnerabilities
- TI-2020-07261 Cleartext storage of sensitive information in Johnson Controls Software House C•CURE 9000… CVSS 3.1CRITICAL 9.9
- TI-2021-14617 CCURE Observable Response Discrepancy CVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-27660 · CVE Program
- CVE-2021-27660 · NVD
- FIRST EPSS
- GHSA-2cfq-h45g-8h84 · 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