Vulnerability Description
Successful exploitation of this vulnerability could give an authenticated Facility Explorer SNC Series Supervisory Controller (F4-SNC) user an unintended level of access to the controller’s file system, allowing them to access or modify system files by sending specifically crafted web messages to the F4-SNC.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Johnsoncontrols | F4-Snc Firmware | 11 |
| Johnsoncontrols | F4-Snc | - |
Related Weaknesses (CWE)
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-182-01Third Party AdvisoryUS Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-182-01Third Party AdvisoryUS Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesVendor Advisory
FAQ
What is CVE-2021-27661?
CVE-2021-27661 is a vulnerability with a CVSS score of 8.8 (HIGH). Successful exploitation of this vulnerability could give an authenticated Facility Explorer SNC Series Supervisory Controller (F4-SNC) user an unintended level of access to the controller’s file syste...
How severe is CVE-2021-27661?
CVE-2021-27661 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-27661?
Check the references section above for vendor advisories and patch information. Affected products include: Johnsoncontrols F4-Snc Firmware, Johnsoncontrols F4-Snc.