Security readout for executives and security teams
Some Fibaro Home Center 2 and Lite units trusted the wrong remote access server when connecting to Fibaro cloud services. If an attacker can interfere with DNS, they may redirect that connection and reach the device web management interface. Further changes still require valid management credentials. Exposure is limited to Fibaro Home Center 2 or Lite devices running firmware 4.600 or older. Risk is higher where device DNS resolution can be spoofed or influenced, such as weakly controlled local networks or compromised network infrastructure. Treat as a moderate IoT remote-access risk. Prioritize validation for buildings or sites relying on Fibaro controllers, especially where local network control is weak or remote support is enabled. Mitigation focus: Inventory Fibaro Home Center 2 and Lite deployments.; Check Fibaro guidance for firmware newer than 4.600.; Apply vendor-supported firmware updates where available..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2021-20989 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.iot-inspector.com/blog/advisory-fibaro-home-center/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Certificate Validation
Improper Certificate Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.