CVEvulnerability
CVE-2021-27661
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-07-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-269, CWE-863
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.
Affected configurations
• johnsoncontrols f4-snc firmware 11
Related
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-182-01 Third Party Advisory, US Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-182-01 Third Party Advisory, US Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories Vendor Advisory